{"title":"Gas Leak Detectors","description":"\u003c!-- COLLECTION: gas-leak-detectors | smart-rule tag = \"gas-leak-detector\" --\u003e\n\n\u003c!-- TODO when SKUs are tagged: (1) set Editor's-pick internal link to the hero product, (2) add product rows to the comparison table, (3) add ItemList schema to the @graph. --\u003e\n\n\u003ch2\u003eWhich gas leak detector should you buy in 2026?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e To pinpoint a leak source — not test an atmosphere — the right tool is a handheld leak detector matched to the gas: a combustible gas leak detector for natural gas (methane) and propane lines, a refrigerant leak detector for HVAC\/R systems, and an ultrasonic detector for high-pressure leaks you can hear before you can smell. For continuous safety monitoring of a space, use a portable or fixed monitor instead.\u003c\/p\u003e\n\n\u003cp\u003eGas leak detectors are handheld “sniffers” with a flexible probe used to trace a leak to its exact source — along a pipe joint, a fitting or an appliance connection. They are the diagnostic tool of the \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e hub: where \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e and \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e answer “is this air safe to breathe?”, a leak detector answers “where exactly is the gas coming from?” For unattended safety monitoring use \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e or \u003ca href=\"\/collections\/area-gas-monitors\" title=\"Area \u0026amp; Transportable Gas Monitors\"\u003eArea \u0026amp; Transportable Gas Monitors\u003c\/a\u003e. Residential combustible-gas and CO leak alarms live in \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cblockquote style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:18px 22px;margin:22px 0;color:#f5e6d3;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;font-size:1.05em;\"\u003eEditor's pick for most buyers — a combustible gas leak detector with a flexible probe\u003c\/strong\u003e\u003cbr\u003e\n  For gas-line and appliance work, a handheld combustible leak detector with a gooseneck probe and adjustable sensitivity finds methane and propane leaks fast — the single most useful sniffer for trades and facilities, and far cheaper than a full monitor.\n  \u003cspan style=\"display:block;margin-top:6px;font-size:0.82em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases (tag wcsafety04-20).\u003c\/span\u003e\n  \u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:14px;\"\u003e\n    \u003ca href=\"\/collections\/gas-detectors\" title=\"BROWSE ALL GAS DETECTORS\" style=\"display:inline-block;background:#ff9800;color:#000;padding:12px 22px;text-decoration:none;font-weight:bold;border-radius:4px;\"\u003eBROWSE ALL GAS DETECTORS →\u003c\/a\u003e\n    \u003ca href=\"https:\/\/www.amazon.com\/s?k=combustible+gas+leak+detector+probe\u0026amp;tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:12px 22px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICES ON AMAZON →\u003c\/a\u003e\n  \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003ch2\u003eWhat this collection covers\u003c\/h2\u003e\n\n\u003cp\u003eLeak detectors are grouped by the leak they find and how they sense it:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustible gas leak detectors\u003c\/strong\u003e — sniff natural gas (methane) and propane along pipes, fittings and appliances; usually a semiconductor sensor with a flexible probe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant leak detectors\u003c\/strong\u003e — find HVAC\/R refrigerant leaks (heated-diode or infrared sensors) at low loss rates measured in ounces per year.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltrasonic leak detectors\u003c\/strong\u003e — hear the high-frequency hiss of pressurized gas or air leaks even where a sniffer can’t reach.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombination CO \/ explosive-gas alarms\u003c\/strong\u003e — plug-in residential units that warn of a methane or propane leak; see \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eGas leak detector types compared\u003c\/h2\u003e\n\n\u003cp\u003eCompared by target leak and sensing method. Approximate street-price ranges reflect the broad market, not WC Safety quotes.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:18px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpec\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:10px;border:1px solid #3a3a3a;text-align:left;\"\u003eCombustible (methane\/propane)\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:10px;border:1px solid #3a3a3a;text-align:left;\"\u003eRefrigerant\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:10px;border:1px solid #3a3a3a;text-align:left;\"\u003eUltrasonic\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eNatural gas \u0026amp; LP leaks\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eHVAC\/R refrigerant\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003ePressurized gas\/air leaks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eSensing method\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eSemiconductor \/ catalytic\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eHeated diode \/ infrared\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eAcoustic (ultrasonic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2520;\"\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cstrong\u003ePinpoints exact source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cspan style=\"color:#81c784;\"\u003e✓\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cspan style=\"color:#81c784;\"\u003e✓\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cspan style=\"color:#81c784;\"\u003e✓\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2520;\"\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cstrong\u003eWorks through barriers \/ at distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cspan style=\"color:#e57373;\"\u003e—\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cspan style=\"color:#e57373;\"\u003e—\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cspan style=\"color:#81c784;\"\u003e✓\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eFlexible probe\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cspan style=\"color:#81c784;\"\u003e✓\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e\u003cspan style=\"color:#81c784;\"\u003e✓\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eSome models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eBest for\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eGas lines, appliances\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eAC \u0026amp; refrigeration\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eHigh-pressure systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003eApprox. street price\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e$60–250\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e$80–400\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:10px;border:1px solid #3a3a3a;\"\u003e$300–2,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhich gas leak detector should you choose?\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose a combustible gas leak detector\u003c\/strong\u003e for natural-gas and propane work — appliance hookups, line repairs and pressure-test follow-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose a refrigerant leak detector\u003c\/strong\u003e for HVAC\/R service, where you need to find small refrigerant losses to recharge and seal a system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose an ultrasonic detector\u003c\/strong\u003e for high-pressure compressed-air or gas leaks, or leaks behind panels and at distance that a sniffer can’t reach.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed to know if the air is safe, not just where the leak is?\u003c\/strong\u003e Use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"portable gas detector\"\u003eportable gas detector\u003c\/a\u003e to measure concentration and oxygen, or a \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"fixed system\"\u003efixed system\u003c\/a\u003e for continuous monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtecting a home or small shop?\u003c\/strong\u003e A plug-in combustible-gas and CO alarm from \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e gives always-on warning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:14px 0 18px 0;padding:12px 16px;background:#1a1a1a;border-radius:4px;\"\u003e\u003cstrong style=\"color:#ffb74d;font-size:0.9em;\"\u003eShop gas leak detectors on Amazon →\u003c\/strong\u003e\n  \u003ca href=\"https:\/\/www.amazon.com\/s?k=combustible+gas+leak+detector\u0026amp;tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:7px 12px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;font-size:0.85em;\"\u003eCombustible leak detector\u003c\/a\u003e\n  \u003ca href=\"https:\/\/www.amazon.com\/s?k=refrigerant+leak+detector\u0026amp;tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:7px 12px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;font-size:0.85em;\"\u003eRefrigerant detector\u003c\/a\u003e\n  \u003ca href=\"https:\/\/www.amazon.com\/s?k=ultrasonic+leak+detector\u0026amp;tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:7px 12px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;font-size:0.85em;\"\u003eUltrasonic detector\u003c\/a\u003e\n  \u003ca href=\"https:\/\/www.amazon.com\/s?k=natural+gas+propane+detector\u0026amp;tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:7px 12px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;font-size:0.85em;\"\u003eNatural gas \/ propane\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eHow to choose a gas leak detector\u003c\/h2\u003e\u003ch3\u003eMatch the detector to the gas\u003c\/h3\u003e\u003cp\u003eA combustible sniffer finds methane and propane; a refrigerant detector finds HVAC\/R refrigerants; an ultrasonic detector finds pressurized leaks by sound. Using the wrong type wastes time — confirm the target gas first.\u003c\/p\u003e\u003ch3\u003eSensitivity and adjustability\u003c\/h3\u003e\u003cp\u003eLook for adjustable sensitivity so you can find the general area on high, then dial down to pinpoint the exact joint. Refrigerant detectors are rated by the smallest leak they catch, in ounces per year.\u003c\/p\u003e\u003ch3\u003eProbe reach and ergonomics\u003c\/h3\u003e\u003cp\u003eA long, flexible gooseneck probe reaches behind appliances and under fittings. Tick-rate and visual bargraph feedback help you home in on the source.\u003c\/p\u003e\u003ch3\u003eResponse and recovery time\u003c\/h3\u003e\u003cp\u003eFaster sensor response and recovery let you sweep a line quickly and re-test the same spot without waiting for the sensor to clear.\u003c\/p\u003e\u003ch3\u003eLeak detection is diagnosis, not monitoring\u003c\/h3\u003e\u003cp\u003eA leak detector tells you where gas escapes; it does not continuously guard a space or measure exposure. Pair it with a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"portable\"\u003eportable\u003c\/a\u003e or \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"fixed\"\u003efixed\u003c\/a\u003e monitor for safety.\u003c\/p\u003e\n\n\u003ch2\u003eLeak detection, safety and refrigerant rules\u003c\/h2\u003e\u003cp\u003ePinpointing and repairing leaks reduces both explosion risk (combustible gases) and exposure, and supports refrigerant-management practice in HVAC\/R. A leak detector is a diagnostic instrument — it does not measure whether an atmosphere meets OSHA Permissible Exposure Limits or is safe to enter. For that, and for confined spaces, use a calibrated \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"portable gas detector\"\u003eportable gas detector\u003c\/a\u003e; for ongoing protection of an area, a \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"fixed gas detection system\"\u003efixed gas detection system\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 id=\"related\"\u003eRelated gas-detection categories\u003c\/h2\u003e\n\u003cp\u003eThis collection is one of five form-factor hubs under \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e. Match the form factor to how the instrument is used, then narrow by the gases you need to detect:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e — Handheld single- and multi-gas instruments for spot checks, confined-space entry, and leak surveys.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e — Clip-on monitors worn in the breathing zone for single-worker exposure alarms.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e — Wall- and structure-mounted transmitters for continuous, unattended plant monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/area-gas-monitors\" title=\"Area \u0026amp; Transportable Gas Monitors\"\u003eArea \u0026amp; Transportable Gas Monitors\u003c\/a\u003e — Transportable multi-gas monitors for perimeter and multi-zone temporary coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/gas-detectors\" title=\"All Gas Detectors\"\u003eAll Gas Detectors\u003c\/a\u003e — the full gas-detection hub.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhat does a gas leak detector do?\u003c\/h3\u003e\u003cp\u003eIt pinpoints the exact source of a gas leak — at a pipe joint, fitting or appliance — using a probe and an increasing tick-rate or bargraph as you near the leak. It locates leaks rather than measuring whether an atmosphere is safe.\u003c\/p\u003e\n\u003ch3\u003eGas leak detector vs gas monitor — what’s the difference?\u003c\/h3\u003e\u003cp\u003eA leak detector finds where gas escapes; a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"gas monitor\"\u003egas monitor\u003c\/a\u003e measures concentration and oxygen to tell you if the air is safe to breathe. You often use both — find the leak, then confirm the space is clear.\u003c\/p\u003e\n\u003ch3\u003eWhat detects a natural gas or propane leak?\u003c\/h3\u003e\u003cp\u003eA combustible gas leak detector — typically a handheld semiconductor or catalytic sniffer with a flexible probe and adjustable sensitivity, tuned to methane and propane.\u003c\/p\u003e\n\u003ch3\u003eHow do I find a refrigerant leak?\u003c\/h3\u003e\u003cp\u003eUse a refrigerant leak detector (heated-diode or infrared) rated for small leaks in ounces per year. Sweep joints, fittings and coils slowly with the probe until the alarm rate climbs.\u003c\/p\u003e\n\u003ch3\u003eWhat is an ultrasonic leak detector?\u003c\/h3\u003e\u003cp\u003eA detector that hears the high-frequency sound of gas or air escaping under pressure — useful for high-pressure leaks, leaks behind panels, and leaks at a distance a sniffer can’t reach.\u003c\/p\u003e\n\u003ch3\u003eCan a leak detector tell me if a space is safe to enter?\u003c\/h3\u003e\u003cp\u003eNo — it locates leaks but does not measure exposure or oxygen. For entry safety use a calibrated \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"portable gas detector\"\u003eportable gas detector\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDo I need a different detector for each gas?\u003c\/h3\u003e\u003cp\u003eLargely yes — combustible, refrigerant and ultrasonic detectors work on different principles. Some combustible detectors cover several flammable gases, but refrigerant work needs a refrigerant-specific tool.\u003c\/p\u003e\n\u003ch3\u003eHow sensitive should a gas leak detector be?\u003c\/h3\u003e\u003cp\u003eSensitive enough to find the leak but adjustable so you can pinpoint it — start high to locate the area, then reduce sensitivity to isolate the exact joint. Refrigerant detectors quote a minimum detectable leak rate.\u003c\/p\u003e\n\u003ch3\u003eWill a gas leak detector find a carbon monoxide leak?\u003c\/h3\u003e\u003cp\u003eCombustible leak detectors target methane and propane, not CO. For carbon monoxide, use a CO monitor or a residential alarm from \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs a plug-in explosive-gas alarm the same as a leak detector?\u003c\/h3\u003e\u003cp\u003eNo — a plug-in alarm gives always-on warning at a fixed spot, while a handheld leak detector lets you trace a leak to its source. Both have a place; see \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e for plug-in alarms.\u003c\/p\u003e\n\u003ch3\u003eHow do I maintain a gas leak detector?\u003c\/h3\u003e\u003cp\u003eKeep the probe and sensor clean, replace sensors per the manufacturer’s schedule, and verify response against a known small leak source periodically so you trust the readings.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this gas leak detector collection?\u003c\/strong\u003e WC Safety is an independent industrial PPE and safety-equipment retailer serving safety managers, procurement teams, and field supervisors. This collection is curated by our editorial desk on the basis of detection principle, target-gas coverage, certification, and real-world fit — not by manufacturer input or paid placement. Selection guidance is grounded in published OSHA standards, manufacturer instrument data, and recognized industrial-hygiene references. Disclosed: WC Safety earns Amazon affiliate commissions on outbound links; that does not influence what we recommend or how we rank it.\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eCurated by Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, confined-space gas detection, and chemical-specific instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast reviewed:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e OSHA 29 CFR 1910 general-industry standards, OSHA Annotated PEL tables, manufacturer leak-detector specifications, and recognized HVAC\/R refrigerant-management practice\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Lineup curated on detection performance, certification, and application fit — not vendor preference.\u003c\/em\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this gas leak detector collection is curated.\u003c\/strong\u003e We map each instrument class to its detection principle (electrochemical, catalytic bead\/pellistor, infrared\/NDIR, or photoionization), the gases it covers, and the standard governing its use — primarily \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e for permit-required confined spaces and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e for toxic-gas thresholds, cross-referenced with ACGIH Threshold Limit Values. Reviewed quarterly and whenever OSHA guidance or the manufacturer lineup changes.\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases made through outbound links on this page (partner tag \u003ccode\u003ewcsafety04-20\u003c\/code\u003e). We are not sponsored by any instrument manufacturer, and affiliate relationships do not influence inclusion or ranking. This page is buyer guidance, not medical, legal, or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"CollectionPage\",\n      \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\",\n      \"name\": \"Gas Leak Detectors\",\n      \"description\": \"Shop handheld gas leak detectors that pinpoint the source — combustible (methane\/propane), refrigerant and ultrasonic detectors. Compare types and how to pick.\",\n      \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\",\n      \"isPartOf\": {\n        \"@type\": \"WebSite\",\n        \"name\": \"WC Safety\",\n        \"url\": \"https:\/\/wcsafety.com\"\n      },\n      \"breadcrumb\": {\n        \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#breadcrumb\"\n      }\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What does a gas leak detector do?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"It pinpoints the exact source of a gas leak — at a pipe joint, fitting or appliance — using a probe and an increasing tick-rate or bargraph as you near the leak. It locates leaks rather than measuring whether an atmosphere is safe.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Gas leak detector vs gas monitor — what\u0026rsquo;s the difference?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"A leak detector finds where gas escapes; a gas monitor measures concentration and oxygen to tell you if the air is safe to breathe. You often use both — find the leak, then confirm the space is clear.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What detects a natural gas or propane leak?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"A combustible gas leak detector — typically a handheld semiconductor or catalytic sniffer with a flexible probe and adjustable sensitivity, tuned to methane and propane.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How do I find a refrigerant leak?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Use a refrigerant leak detector (heated-diode or infrared) rated for small leaks in ounces per year. Sweep joints, fittings and coils slowly with the probe until the alarm rate climbs.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What is an ultrasonic leak detector?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"A detector that hears the high-frequency sound of gas or air escaping under pressure — useful for high-pressure leaks, leaks behind panels, and leaks at a distance a sniffer can't reach.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Can a leak detector tell me if a space is safe to enter?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"No — it locates leaks but does not measure exposure or oxygen. For entry safety use a calibrated portable gas detector.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Do I need a different detector for each gas?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Largely yes — combustible, refrigerant and ultrasonic detectors work on different principles. Some combustible detectors cover several flammable gases, but refrigerant work needs a refrigerant-specific tool.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How sensitive should a gas leak detector be?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Sensitive enough to find the leak but adjustable so you can pinpoint it — start high to locate the area, then reduce sensitivity to isolate the exact joint. Refrigerant detectors quote a minimum detectable leak rate.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Will a gas leak detector find a carbon monoxide leak?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Combustible leak detectors target methane and propane, not CO. For carbon monoxide, use a CO monitor or a residential alarm from Carbon Monoxide Alarms \u0026 Detectors.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Is a plug-in explosive-gas alarm the same as a leak detector?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"No — a plug-in alarm gives always-on warning at a fixed spot, while a handheld leak detector lets you trace a leak to its source. Both have a place; see Carbon Monoxide Alarms \u0026 Detectors for plug-in alarms.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How do I maintain a gas leak detector?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Keep the probe and sensor clean, replace sensors per the manufacturer's schedule, and verify response against a known small leak source periodically so you trust the readings.\"\n          }\n        }\n      ]\n    },\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#breadcrumb\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"name\": \"Home\",\n          \"item\": \"https:\/\/wcsafety.com\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"name\": \"Gas Detectors\",\n          \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"Gas Leak Detectors\"\n        }\n      ]\n    }\n  ]\n}\n\u003c\/script\u003e","products":[{"product_id":"klein-tools-et120-gas-leak-detector","title":"Klein Tools ET120 Gas Leak Detector — Combustible (18-in Gooseneck, 50-10,000 ppm)","description":"\u003c!-- PRODUCT B074NBJ8XP | tag gas-leak-detector | TODO: add matching Product Review + best-of guide links when those silo layers exist --\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:14px 18px;margin:0 0 18px 0;color:#f5e6d3;font-size:0.95em;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eEditor’s note:\u003c\/strong\u003e the Klein Tools ET120 gas leak detector is one of the instruments we curate in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e buyer’s hub. Compare it with the \u003ca href=\"\/products\/forensics-detectors-gas-leak-detector\" title=\"Forensics Gas Leak Detector\"\u003eForensics Gas Leak Detector\u003c\/a\u003e below before you order.\u003c\/div\u003e\n\n\u003ch2 id=\"top\"\u003eKlein Tools ET120 Gas Leak Detector — Combustible Gas Tester\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eKlein Tools ET120 gas leak detector\u003c\/strong\u003e pinpoints combustible gases such as natural gas (methane), propane and butane with an 18-inch gooseneck and adjustable sensitivity — the \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"gas leak detector\"\u003egas leak detector\u003c\/a\u003e trades and facilities reach for to trace a leak to its exact source. It locates the leak; it does not measure whether the air is safe to breathe.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#bdae9d;margin:10px 0 18px 0;\"\u003eJump to: \u003ca href=\"#features\" style=\"color:#ffb74d;\"\u003eFeatures\u003c\/a\u003e · \u003ca href=\"#specs\" style=\"color:#ffb74d;\"\u003eSpecs\u003c\/a\u003e · \u003ca href=\"#compatibility\" style=\"color:#ffb74d;\"\u003eWhat it detects\u003c\/a\u003e · \u003ca href=\"#comparison\" style=\"color:#ffb74d;\"\u003eComparison\u003c\/a\u003e · \u003ca href=\"#faq\" style=\"color:#ffb74d;\"\u003eFAQ\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Klein Tools ET120 is a handheld combustible gas leak detector with an 18-inch gooseneck probe, a 50-10,000 ppm range and adjustable sensitivity for pinpointing natural-gas and propane leaks.\u003c\/p\u003e\n\n\u003ch3 id=\"features\"\u003eKey features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003ePinpoints combustible-gas leaks from 50 to 10,000 ppm across a wide sensitivity range\u003c\/li\u003e\n\u003cli\u003e18-inch flexible gooseneck reaches behind appliances, under fittings and into tight joints\u003c\/li\u003e\n\u003cli\u003eAdjustable sensitivity to find the area first, then dial in the exact leak point\u003c\/li\u003e\n\u003cli\u003eAudible tick-rate plus visual indication that climbs as you near the source\u003c\/li\u003e\n\u003cli\u003eMost-reviewed leak detector we stock (1,800+ ratings, 4.6 stars)\u003c\/li\u003e\n\u003cli\u003eIncludes a storage pouch and batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#1b3a2a;border:1px solid #4caf50;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#81c784;\"\u003ePros\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eTrusted Klein Tools build\u003c\/li\u003e\n\u003cli\u003eLong 18-inch gooseneck probe\u003c\/li\u003e\n\u003cli\u003eWide 50-10,000 ppm range\u003c\/li\u003e\n\u003cli\u003eAdjustable sensitivity for pinpointing\u003c\/li\u003e\n\u003cli\u003eOutstanding 4.6-star, 1,800+ review record\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#3a1e1e;border:1px solid #ef5350;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#e57373;\"\u003eCons\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eLocates leaks — does not measure whether an atmosphere is safe\u003c\/li\u003e\n\u003cli\u003eCombustible gases only (not refrigerants or toxics)\u003c\/li\u003e\n\u003cli\u003eBattery (not rechargeable)\u003c\/li\u003e\n\u003cli\u003eNot a confined-space entry instrument\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 id=\"specs\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eCombustible gases (natural gas, methane, propane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eRange\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e50–10,000 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eProbe\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e18-inch flexible gooseneck\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eSensitivity\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eAlarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eAudible tick-rate + visual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eIncluded\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003ePouch and batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e13 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eWhere the Klein Tools ET120 fits\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eNatural-gas line and appliance leak checks\u003c\/li\u003e\n\u003cli\u003ePropane and LP system service\u003c\/li\u003e\n\u003cli\u003ePost-repair pressure-test verification\u003c\/li\u003e\n\u003cli\u003ePlumbing and HVAC gas work\u003c\/li\u003e\n\u003cli\u003eFacilities maintenance leak surveys\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"compatibility\"\u003eWhat the Klein Tools ET120 detects (and what it doesn’t)\u003c\/h2\u003e\n\n\u003cp\u003eThe ET120 finds combustible gases such as natural gas (methane), propane and butane — it does \u003cstrong\u003enot\u003c\/strong\u003e detect refrigerants, carbon monoxide, oxygen levels or specific toxics. For refrigerant work choose a \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e or \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e; for CO use the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range. Crucially, a leak detector tells you \u003cem\u003ewhere\u003c\/em\u003e gas escapes, not whether a space is safe to enter — for that, use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor or a \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e clip. Adjustable sensitivity lets you locate the area, then pinpoint the joint.\u003c\/p\u003e\n\n\u003cp\u003eCross-shopping? This unit sits in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e hub alongside \u003ca href=\"\/products\/forensics-detectors-gas-leak-detector\" title=\"Forensics Gas Leak Detector\"\u003eForensics Gas Leak Detector\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"TopTes PT-830S\"\u003eTopTes PT-830S\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"TopTes PT210S\"\u003eTopTes PT210S\u003c\/a\u003e. For other gas-detection form factors see \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\n\u003ch2 id=\"comparison\"\u003eHow the Klein ET120 compares\u003c\/h2\u003e\n\n\u003cp\u003eThe ET120 is a premium combustible leak detector with a long 18-inch gooseneck and a deep review record. For lower-cost combustible sniffers, compare the \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e (17-in gooseneck) and \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"TopTes PT210S\"\u003eTopTes PT210S\u003c\/a\u003e; for a rechargeable color-display option, the \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"TopTes PT-830S\"\u003eTopTes PT-830S\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eChoose the \u003cstrong\u003eKlein ET120\u003c\/strong\u003e for a trusted-brand combustible sniffer with a long gooseneck and the deepest review record.\u003c\/li\u003e\n\u003cli\u003eSave money with the \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e or \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"TopTes PT210S\"\u003eTopTes PT210S\u003c\/a\u003e combustible detectors.\u003c\/li\u003e\n\u003cli\u003eNeed refrigerant detection instead? See the \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat does the Klein Tools ET120 detect?\u003c\/h3\u003e\u003cp\u003eIt detects combustible gases such as natural gas (methane), propane and butane from 50 to 10,000 ppm. It does not detect refrigerants, CO or oxygen — for those, use the matching instrument from the \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e hub.\u003c\/p\u003e\n\u003ch3\u003eHow long is the ET120 probe?\u003c\/h3\u003e\u003cp\u003eIt has an 18-inch flexible gooseneck that holds its shape, so you can reach behind appliances, under fittings and into tight joints.\u003c\/p\u003e\n\u003ch3\u003eCan the ET120 tell me if a space is safe to enter?\u003c\/h3\u003e\u003cp\u003eNo — it locates leaks, it does not measure concentration or oxygen. For entry safety use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e gas monitor or a \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e clip.\u003c\/p\u003e\n\u003ch3\u003eHow do I pinpoint a leak with adjustable sensitivity?\u003c\/h3\u003e\u003cp\u003eStart on high sensitivity to find the general area, then lower the sensitivity to zero in on the exact joint where the tick-rate peaks.\u003c\/p\u003e\n\u003ch3\u003eIs the ET120 rechargeable?\u003c\/h3\u003e\u003cp\u003eNo — it runs on batteries, which are included along with a storage pouch. Keep spares for long survey jobs.\u003c\/p\u003e\n\u003ch3\u003eWhat is the detection range?\u003c\/h3\u003e\u003cp\u003e50 to 10,000 ppm of combustible gas, which covers everything from a faint trace to a substantial leak as you sweep a line.\u003c\/p\u003e\n\u003ch3\u003eWill the ET120 find a propane leak?\u003c\/h3\u003e\u003cp\u003eYes — it detects propane and other combustible gases including natural gas and methane, making it suitable for LP system service.\u003c\/p\u003e\n\u003ch3\u003eHow does it signal a leak?\u003c\/h3\u003e\u003cp\u003eAn audible tick-rate and visual indication increase as gas concentration rises, guiding you to the source.\u003c\/p\u003e\n\u003ch3\u003eDoes the ET120 detect refrigerant or CO?\u003c\/h3\u003e\u003cp\u003eNo — it is combustible-gas only. For refrigerant use the \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e; for carbon monoxide see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\u003ch3\u003eIs it in stock and how does it ship?\u003c\/h3\u003e\u003cp\u003eUse the Amazon buy button for current availability and delivery timing through our fulfillment partner.\u003c\/p\u003e\n\u003ch3\u003eDo I need to calibrate the ET120?\u003c\/h3\u003e\u003cp\u003eCombustible leak detectors are not field-calibrated like monitors; verify response against a known small gas source periodically so you trust the readings.\u003c\/p\u003e\n\u003ch3\u003eHow does the ET120 compare to the TopTes combustible detectors?\u003c\/h3\u003e\u003cp\u003eThe ET120 is a premium Klein-brand unit with an 18-inch gooseneck; the \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e and \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"PT210S\"\u003ePT210S\u003c\/a\u003e are lower-cost alternatives.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border:1px solid #3a3a3a;border-radius:6px;padding:16px 18px;margin:22px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#f5e6d3;\"\u003eReady to order the \u003cstrong\u003eKlein Tools ET120 gas leak detector\u003c\/strong\u003e? Add it to your cart above, or check the current Amazon price below. Compare it against the rest of our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e lineup before you buy.\u003c\/p\u003e\n\u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0;\"\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B074NBJ8XP?tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:13px 26px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICE ON AMAZON →\u003c\/a\u003e\u003cspan style=\"font-size:0.8em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this Klein Tools page?\u003c\/strong\u003e WC Safety is an independent industrial safety-equipment retailer serving safety managers, procurement teams and field supervisors. The specifications here are taken from the manufacturer’s published listing for Klein Tools ET120 and framed against \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e. Disclosed: WC Safety earns Amazon affiliate commissions on outbound clicks; that does not influence the specs shown or our lineup.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eBy Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, gas detection and instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast updated:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e manufacturer product listing \u0026amp; specifications, OSHA 29 CFR 1910.146, OSHA Annotated PEL tables, ACGIH Threshold Limit Values.\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Specs verified against the manufacturer’s published data.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this page is maintained.\u003c\/strong\u003e Specifications and pricing are reviewed against the manufacturer’s current listing and re-checked whenever the lineup changes. Gas-detection guidance follows \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA PELs\u003c\/a\u003e, cross-referenced with ACGIH TLVs.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases through outbound links on this page (tag wcsafety04-20). We are not sponsored by any instrument manufacturer. This page is buyer guidance, not medical, legal or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Product\", \"@id\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector#product\", \"name\": \"Klein Tools ET120 Gas Leak Detector — Combustible (18-in Gooseneck, 50-10,000 ppm)\", \"description\": \"Klein Tools ET120 gas leak detector — combustible gas tester with 18-in gooseneck, 50-10,000 ppm range and adjustable sensitivity. Order at WC Safety.\", \"sku\": \"B074NBJ8XP\", \"mpn\": \"ET120\", \"image\": [\"https:\/\/wcsafety.com\/cdn\/shop\/products\/klein-tools-et120-gas-leak-detector.jpg\"], \"brand\": {\"@type\": \"Brand\", \"name\": \"Klein Tools\"}, \"category\": \"Gas Leak Detector\", \"isPartOf\": {\"@type\": \"CollectionPage\", \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\", \"name\": \"Gas Leak Detectors\", \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, \"isRelatedTo\": [{\"@type\": \"Product\", \"name\": \"Forensics Detectors Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT-830S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT520A Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT210S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Elitech ILD-200 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes RT-389 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector\"}], \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector\", \"priceCurrency\": \"USD\", \"price\": \"129.97\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"WC Safety\"}}}, {\"@type\": \"BreadcrumbList\", \"@id\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector#breadcrumb\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wcsafety.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Gas Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Gas Leak Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"Klein Tools ET120 Gas Leak Detector — Combustible (18-in Gooseneck, 50-10,000 ppm)\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the Klein Tools ET120 detect?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It detects combustible gases such as natural gas (methane), propane and butane from 50 to 10,000 ppm. It does not detect refrigerants, CO or oxygen — for those, use the matching instrument from the Gas Detectors hub.\"}}, {\"@type\": \"Question\", \"name\": \"How long is the ET120 probe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It has an 18-inch flexible gooseneck that holds its shape, so you can reach behind appliances, under fittings and into tight joints.\"}}, {\"@type\": \"Question\", \"name\": \"Can the ET120 tell me if a space is safe to enter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it locates leaks, it does not measure concentration or oxygen. For entry safety use a Portable Gas Detectors gas monitor or a Personal \u0026 Wearable Gas Detectors clip.\"}}, {\"@type\": \"Question\", \"name\": \"How do I pinpoint a leak with adjustable sensitivity?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Start on high sensitivity to find the general area, then lower the sensitivity to zero in on the exact joint where the tick-rate peaks.\"}}, {\"@type\": \"Question\", \"name\": \"Is the ET120 rechargeable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it runs on batteries, which are included along with a storage pouch. Keep spares for long survey jobs.\"}}, {\"@type\": \"Question\", \"name\": \"What is the detection range?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"50 to 10,000 ppm of combustible gas, which covers everything from a faint trace to a substantial leak as you sweep a line.\"}}, {\"@type\": \"Question\", \"name\": \"Will the ET120 find a propane leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it detects propane and other combustible gases including natural gas and methane, making it suitable for LP system service.\"}}, {\"@type\": \"Question\", \"name\": \"How does it signal a leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An audible tick-rate and visual indication increase as gas concentration rises, guiding you to the source.\"}}, {\"@type\": \"Question\", \"name\": \"Does the ET120 detect refrigerant or CO?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it is combustible-gas only. For refrigerant use the Fieldpiece DR58; for carbon monoxide see the Carbon Monoxide Alarms \u0026 Detectors range.\"}}, {\"@type\": \"Question\", \"name\": \"Is it in stock and how does it ship?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need to calibrate the ET120?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Combustible leak detectors are not field-calibrated like monitors; verify response against a known small gas source periodically so you trust the readings.\"}}, {\"@type\": \"Question\", \"name\": \"How does the ET120 compare to the TopTes combustible detectors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ET120 is a premium Klein-brand unit with an 18-inch gooseneck; the TopTes PT520A and PT210S are lower-cost alternatives.\"}}]}, {\"@type\": \"Organization\", \"@id\": \"https:\/\/wcsafety.com\/#org\", \"name\": \"WC Safety\", \"url\": \"https:\/\/wcsafety.com\", \"logo\": \"https:\/\/wcsafety.com\/cdn\/shop\/files\/logo.png\"}, {\"@type\": \"Person\", \"@id\": \"https:\/\/wcsafety.com\/#editor\", \"name\": \"Steven Eaton\", \"jobTitle\": \"Editorial Lead\", \"worksFor\": {\"@id\": \"https:\/\/wcsafety.com\/#org\"}, \"knowsAbout\": [\"industrial gas detection\", \"atmospheric monitoring\", \"personal protective equipment\"]}, {\"@type\": \"Brand\", \"name\": \"Klein Tools\"}]}\n\u003c\/script\u003e","brand":"Klein Tools","offers":[{"title":"Default Title","offer_id":44266482827352,"sku":"B074NBJ8XP","price":129.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/61bkGhTA6AL._AC_SL1500.jpg?v=1782122401"},{"product_id":"forensics-detectors-gas-leak-detector","title":"Forensics Detectors Gas Leak Detector (Natural Gas, Propane, Methane, Combustibles)","description":"\u003c!-- PRODUCT B08WPVGW7X | tag gas-leak-detector | TODO: add matching Product Review + best-of guide links when those silo layers exist --\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:14px 18px;margin:0 0 18px 0;color:#f5e6d3;font-size:0.95em;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eEditor’s note:\u003c\/strong\u003e the Forensics Detectors gas leak detector is one of the instruments we curate in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e buyer’s hub. Compare it with the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e below before you order.\u003c\/div\u003e\n\n\u003ch2 id=\"top\"\u003eForensics Detectors Gas Leak Detector — Combustible Sniffer\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eForensics Detectors gas leak detector\u003c\/strong\u003e sniffs an unusually broad range of combustible gases such as natural gas (methane), propane and butane plus gasoline and alcohols — a versatile \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"gas leak detector\"\u003egas leak detector\u003c\/a\u003e that passes a 10-foot drop test for real jobsite use. It traces the leak source; it does not measure whether the air is safe.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#bdae9d;margin:10px 0 18px 0;\"\u003eJump to: \u003ca href=\"#features\" style=\"color:#ffb74d;\"\u003eFeatures\u003c\/a\u003e · \u003ca href=\"#specs\" style=\"color:#ffb74d;\"\u003eSpecs\u003c\/a\u003e · \u003ca href=\"#compatibility\" style=\"color:#ffb74d;\"\u003eWhat it detects\u003c\/a\u003e · \u003ca href=\"#comparison\" style=\"color:#ffb74d;\"\u003eComparison\u003c\/a\u003e · \u003ca href=\"#faq\" style=\"color:#ffb74d;\"\u003eFAQ\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Forensics Detectors Gas Leak Detector is a handheld combustible sniffer with a catalytic sensor and flexible probe that detects natural gas, methane, propane, butane, gasoline and alcohols.\u003c\/p\u003e\n\n\u003ch3 id=\"features\"\u003eKey features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eSniffs a broad range of combustibles — natural gas, methane, propane, butane, gasoline, alcohols and more\u003c\/li\u003e\n\u003cli\u003eCatalytic sensor with a flexible gooseneck probe to reach leak points\u003c\/li\u003e\n\u003cli\u003ePasses a 10-foot drop test for jobsite durability\u003c\/li\u003e\n\u003cli\u003eAudible and visual leak indication that rises near the source\u003c\/li\u003e\n\u003cli\u003eBroad combustible coverage in one affordable tool\u003c\/li\u003e\n\u003cli\u003eCompact, rugged red housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#1b3a2a;border:1px solid #4caf50;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#81c784;\"\u003ePros\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eBroad combustible-gas coverage\u003c\/li\u003e\n\u003cli\u003eDrop-tested 10 ft durability\u003c\/li\u003e\n\u003cli\u003eFlexible gooseneck probe\u003c\/li\u003e\n\u003cli\u003eAffordable\u003c\/li\u003e\n\u003cli\u003eSolid 4.4-star track record\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#3a1e1e;border:1px solid #ef5350;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#e57373;\"\u003eCons\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eLocates leaks — does not measure atmosphere safety\u003c\/li\u003e\n\u003cli\u003eCombustible gases only (no refrigerants\/toxics)\u003c\/li\u003e\n\u003cli\u003eBattery powered\u003c\/li\u003e\n\u003cli\u003eNot for confined-space entry testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 id=\"specs\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eNatural gas, methane, propane, butane, gasoline, alcohols, combustibles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eSensor\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eCatalytic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eProbe\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eFlexible gooseneck\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eAlarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eAudible \u0026amp; visual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eDurability\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003ePasses 10 ft drop test\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e11.2 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eWhere the Forensics Detectors Gas Leak Detector fits\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eNatural-gas and LP leak tracing\u003c\/li\u003e\n\u003cli\u003eMulti-fuel shops (gasoline, diesel, alcohols)\u003c\/li\u003e\n\u003cli\u003eAppliance and line service\u003c\/li\u003e\n\u003cli\u003eRV and marine fuel-system checks\u003c\/li\u003e\n\u003cli\u003eGeneral facilities leak surveys\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"compatibility\"\u003eWhat the Forensics Detectors Gas Leak Detector detects (and what it doesn’t)\u003c\/h2\u003e\n\n\u003cp\u003eIt finds combustible gases such as natural gas (methane), propane and butane plus gasoline, acetone, ethanol and other flammable vapors — but \u003cstrong\u003enot\u003c\/strong\u003e refrigerants, CO or oxygen. For refrigerant leaks use the \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e or \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e; for CO see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range. As a leak locator it shows you where gas escapes, not whether a space is safe — use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor for entry decisions.\u003c\/p\u003e\n\n\u003cp\u003eCross-shopping? This unit sits in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e hub alongside \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"TopTes PT-830S\"\u003eTopTes PT-830S\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"TopTes PT210S\"\u003eTopTes PT210S\u003c\/a\u003e. For other gas-detection form factors see \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\n\u003ch2 id=\"comparison\"\u003eHow the Forensics gas leak detector compares\u003c\/h2\u003e\n\n\u003cp\u003eThis Forensics unit stands out for broad combustible coverage and drop-test durability at a mid price. The \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein ET120\"\u003eKlein ET120\u003c\/a\u003e offers a longer gooseneck and deeper reviews; the \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"TopTes PT210S\"\u003eTopTes PT210S\u003c\/a\u003e is a lower-cost basic sniffer.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eChoose the \u003cstrong\u003eForensics gas leak detector\u003c\/strong\u003e for broad combustible coverage and drop-test durability.\u003c\/li\u003e\n\u003cli\u003ePrefer a longer probe and trusted brand? See the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein ET120\"\u003eKlein ET120\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eNeed refrigerant detection? Use the \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat gases does the Forensics gas leak detector find?\u003c\/h3\u003e\u003cp\u003eA broad set of combustibles — natural gas, methane, propane, butane, gasoline, alcohols and more. It does not detect refrigerants or CO.\u003c\/p\u003e\n\u003ch3\u003eIs the Forensics leak detector durable?\u003c\/h3\u003e\u003cp\u003eYes — it passes a 10-foot drop test, so it holds up to being dropped on a jobsite better than many consumer sniffers.\u003c\/p\u003e\n\u003ch3\u003eCan it tell me if a space is safe to enter?\u003c\/h3\u003e\u003cp\u003eNo — it locates leaks only. For entry safety, measure the atmosphere with a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor or a \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e clip.\u003c\/p\u003e\n\u003ch3\u003eWhat sensor does it use?\u003c\/h3\u003e\u003cp\u003eA catalytic sensor tuned to combustible gases, paired with a flexible gooseneck probe to reach the leak point.\u003c\/p\u003e\n\u003ch3\u003eWill it detect gasoline or alcohol vapors?\u003c\/h3\u003e\u003cp\u003eYes — its broad combustible coverage includes gasoline, acetone, ethanol and similar flammable vapors, which suits multi-fuel shops.\u003c\/p\u003e\n\u003ch3\u003eHow does it signal a leak?\u003c\/h3\u003e\u003cp\u003eAudible and visual indication increases as you approach the leak, helping you pinpoint the source.\u003c\/p\u003e\n\u003ch3\u003eIs it rechargeable?\u003c\/h3\u003e\u003cp\u003eIt is battery powered; keep spare batteries for longer survey work.\u003c\/p\u003e\n\u003ch3\u003eDoes it detect refrigerant or CO?\u003c\/h3\u003e\u003cp\u003eNo. For refrigerant use a \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e or \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e; for CO see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\u003ch3\u003eHow do I pinpoint the exact leak?\u003c\/h3\u003e\u003cp\u003eSweep slowly along joints and fittings; the alarm rate climbs as you near the source, then peaks at the leak.\u003c\/p\u003e\n\u003ch3\u003eIs it in stock and how does it ship?\u003c\/h3\u003e\u003cp\u003eUse the Amazon buy button for current availability and delivery timing through our fulfillment partner.\u003c\/p\u003e\n\u003ch3\u003eHow does it compare to the Klein ET120?\u003c\/h3\u003e\u003cp\u003eThe \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein ET120\"\u003eKlein ET120\u003c\/a\u003e has a longer 18-inch gooseneck and more reviews; the Forensics unit emphasises broad gas coverage and drop durability at a lower price.\u003c\/p\u003e\n\u003ch3\u003eCan I use it for confined-space work?\u003c\/h3\u003e\u003cp\u003eOnly to find a leak — confined-space entry still requires atmospheric testing with a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e 4-gas instrument.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border:1px solid #3a3a3a;border-radius:6px;padding:16px 18px;margin:22px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#f5e6d3;\"\u003eReady to order the \u003cstrong\u003eForensics Detectors gas leak detector\u003c\/strong\u003e? Add it to your cart above, or check the current Amazon price below. Compare it against the rest of our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e lineup before you buy.\u003c\/p\u003e\n\u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0;\"\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B08WPVGW7X?tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:13px 26px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICE ON AMAZON →\u003c\/a\u003e\u003cspan style=\"font-size:0.8em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this Forensics Detectors page?\u003c\/strong\u003e WC Safety is an independent industrial safety-equipment retailer serving safety managers, procurement teams and field supervisors. The specifications here are taken from the manufacturer’s published listing for Forensics Detectors Gas Leak Detector and framed against \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e. Disclosed: WC Safety earns Amazon affiliate commissions on outbound clicks; that does not influence the specs shown or our lineup.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eBy Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, gas detection and instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast updated:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e manufacturer product listing \u0026amp; specifications, OSHA 29 CFR 1910.146, OSHA Annotated PEL tables, ACGIH Threshold Limit Values.\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Specs verified against the manufacturer’s published data.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this page is maintained.\u003c\/strong\u003e Specifications and pricing are reviewed against the manufacturer’s current listing and re-checked whenever the lineup changes. Gas-detection guidance follows \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA PELs\u003c\/a\u003e, cross-referenced with ACGIH TLVs.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases through outbound links on this page (tag wcsafety04-20). We are not sponsored by any instrument manufacturer. This page is buyer guidance, not medical, legal or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Product\", \"@id\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector#product\", \"name\": \"Forensics Detectors Gas Leak Detector (Natural Gas, Propane, Methane, Combustibles)\", \"description\": \"Forensics Detectors gas leak detector — sniffs natural gas, methane, propane, butane and combustibles with a flexible probe. Drop-tested. Order at WC Safety.\", \"sku\": \"B08WPVGW7X\", \"mpn\": \"FD-GLD\", \"image\": [\"https:\/\/wcsafety.com\/cdn\/shop\/products\/forensics-detectors-gas-leak-detector.jpg\"], \"brand\": {\"@type\": \"Brand\", \"name\": \"Forensics Detectors\"}, \"category\": \"Gas Leak Detector\", \"isPartOf\": {\"@type\": \"CollectionPage\", \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\", \"name\": \"Gas Leak Detectors\", \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, \"isRelatedTo\": [{\"@type\": \"Product\", \"name\": \"Klein Tools ET120 Combustible Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT-830S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT520A Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT210S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Elitech ILD-200 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes RT-389 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector\"}], \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector\", \"priceCurrency\": \"USD\", \"price\": \"89.45\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"WC Safety\"}}}, {\"@type\": \"BreadcrumbList\", \"@id\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector#breadcrumb\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wcsafety.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Gas Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Gas Leak Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"Forensics Detectors Gas Leak Detector (Natural Gas, Propane, Methane, Combustibles)\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What gases does the Forensics gas leak detector find?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A broad set of combustibles — natural gas, methane, propane, butane, gasoline, alcohols and more. It does not detect refrigerants or CO.\"}}, {\"@type\": \"Question\", \"name\": \"Is the Forensics leak detector durable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it passes a 10-foot drop test, so it holds up to being dropped on a jobsite better than many consumer sniffers.\"}}, {\"@type\": \"Question\", \"name\": \"Can it tell me if a space is safe to enter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it locates leaks only. For entry safety, measure the atmosphere with a Portable Gas Detectors monitor or a Personal \u0026 Wearable Gas Detectors clip.\"}}, {\"@type\": \"Question\", \"name\": \"What sensor does it use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A catalytic sensor tuned to combustible gases, paired with a flexible gooseneck probe to reach the leak point.\"}}, {\"@type\": \"Question\", \"name\": \"Will it detect gasoline or alcohol vapors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — its broad combustible coverage includes gasoline, acetone, ethanol and similar flammable vapors, which suits multi-fuel shops.\"}}, {\"@type\": \"Question\", \"name\": \"How does it signal a leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Audible and visual indication increases as you approach the leak, helping you pinpoint the source.\"}}, {\"@type\": \"Question\", \"name\": \"Is it rechargeable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is battery powered; keep spare batteries for longer survey work.\"}}, {\"@type\": \"Question\", \"name\": \"Does it detect refrigerant or CO?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. For refrigerant use a Fieldpiece DR58 or Elitech ILD-200; for CO see the Carbon Monoxide Alarms \u0026 Detectors range.\"}}, {\"@type\": \"Question\", \"name\": \"How do I pinpoint the exact leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Sweep slowly along joints and fittings; the alarm rate climbs as you near the source, then peaks at the leak.\"}}, {\"@type\": \"Question\", \"name\": \"Is it in stock and how does it ship?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.\"}}, {\"@type\": \"Question\", \"name\": \"How does it compare to the Klein ET120?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Klein ET120 has a longer 18-inch gooseneck and more reviews; the Forensics unit emphasises broad gas coverage and drop durability at a lower price.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use it for confined-space work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Only to find a leak — confined-space entry still requires atmospheric testing with a Portable Gas Detectors 4-gas instrument.\"}}]}, {\"@type\": \"Organization\", \"@id\": \"https:\/\/wcsafety.com\/#org\", \"name\": \"WC Safety\", \"url\": \"https:\/\/wcsafety.com\", \"logo\": \"https:\/\/wcsafety.com\/cdn\/shop\/files\/logo.png\"}, {\"@type\": \"Person\", \"@id\": \"https:\/\/wcsafety.com\/#editor\", \"name\": \"Steven Eaton\", \"jobTitle\": \"Editorial Lead\", \"worksFor\": {\"@id\": \"https:\/\/wcsafety.com\/#org\"}, \"knowsAbout\": [\"industrial gas detection\", \"atmospheric monitoring\", \"personal protective equipment\"]}, {\"@type\": \"Brand\", \"name\": \"Forensics Detectors\"}]}\n\u003c\/script\u003e","brand":"Forensics Detectors","offers":[{"title":"Default Title","offer_id":44266482958424,"sku":"B08WPVGW7X","price":89.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/71q0VYJvPlL._AC_SL1500.jpg?v=1782122405"},{"product_id":"toptes-pt-830s-gas-leak-detector","title":"TopTes PT-830S Gas Leak Detector — Rechargeable, 14.5-in Probe, Color Display","description":"\u003c!-- PRODUCT B0DF71BXCD | tag gas-leak-detector | TODO: add matching Product Review + best-of guide links when those silo layers exist --\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:14px 18px;margin:0 0 18px 0;color:#f5e6d3;font-size:0.95em;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eEditor’s note:\u003c\/strong\u003e the TopTes PT-830S gas leak detector is one of the instruments we curate in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e buyer’s hub. Compare it with the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e below before you order.\u003c\/div\u003e\n\n\u003ch2 id=\"top\"\u003eTopTes PT-830S Gas Leak Detector — Rechargeable Color-Display Sniffer\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eTopTes PT-830S gas leak detector\u003c\/strong\u003e is a rechargeable combustible sniffer with a color display and a 14.5-inch flexible probe — a \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"gas leak detector\"\u003egas leak detector\u003c\/a\u003e that shows the concentration as you close in on combustible gases such as natural gas (methane), propane and butane. It pinpoints the leak; it does not judge whether the air is safe.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#bdae9d;margin:10px 0 18px 0;\"\u003eJump to: \u003ca href=\"#features\" style=\"color:#ffb74d;\"\u003eFeatures\u003c\/a\u003e · \u003ca href=\"#specs\" style=\"color:#ffb74d;\"\u003eSpecs\u003c\/a\u003e · \u003ca href=\"#compatibility\" style=\"color:#ffb74d;\"\u003eWhat it detects\u003c\/a\u003e · \u003ca href=\"#comparison\" style=\"color:#ffb74d;\"\u003eComparison\u003c\/a\u003e · \u003ca href=\"#faq\" style=\"color:#ffb74d;\"\u003eFAQ\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe TopTes PT-830S is a rechargeable combustible gas leak detector with a 14.5-inch flexible probe, a 0-10,000 ppm range, a TFT color display and three alarm types.\u003c\/p\u003e\n\n\u003ch3 id=\"features\"\u003eKey features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eRechargeable combustible sniffer reading 0–10,000 ppm\u003c\/li\u003e\n\u003cli\u003e14.5-inch flexible probe for behind-appliance and tight-joint access\u003c\/li\u003e\n\u003cli\u003eTFT color display shows the concentration as you home in\u003c\/li\u003e\n\u003cli\u003eThree alarm types — audible, visual and vibration\u003c\/li\u003e\n\u003cli\u003eFigaro semiconductor sensor tuned to natural gas, methane and propane\u003c\/li\u003e\n\u003cli\u003eColor-screen feedback for precise pinpointing at the leak\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#1b3a2a;border:1px solid #4caf50;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#81c784;\"\u003ePros\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eRechargeable — no disposable cells\u003c\/li\u003e\n\u003cli\u003eColor display with concentration readout\u003c\/li\u003e\n\u003cli\u003eThree alarm types\u003c\/li\u003e\n\u003cli\u003e14.5-inch flexible probe\u003c\/li\u003e\n\u003cli\u003eGood value for the feature set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#3a1e1e;border:1px solid #ef5350;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#e57373;\"\u003eCons\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eLocates leaks — not an atmosphere safety monitor\u003c\/li\u003e\n\u003cli\u003eCombustible gases only\u003c\/li\u003e\n\u003cli\u003eSemiconductor sensor needs periodic verification\u003c\/li\u003e\n\u003cli\u003eNot for confined-space entry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 id=\"specs\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eNatural gas, methane, propane, combustibles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eRange\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e0–10,000 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eProbe\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e14.5-inch flexible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eDisplay\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eTFT color\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eAlarms\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e3 types (audible, visual, vibration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eRechargeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eSensor\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eFigaro semiconductor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eWhere the TopTes PT-830S fits\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eNatural-gas and propane leak tracing\u003c\/li\u003e\n\u003cli\u003eAppliance and line service\u003c\/li\u003e\n\u003cli\u003eHome and light-industrial leak checks\u003c\/li\u003e\n\u003cli\u003eRV and outdoor fuel systems\u003c\/li\u003e\n\u003cli\u003eQuick recheck after a repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"compatibility\"\u003eWhat the TopTes PT-830S detects (and what it doesn’t)\u003c\/h2\u003e\n\n\u003cp\u003eThe PT-830S finds combustible gases such as natural gas (methane), propane and butane — not refrigerants, CO or oxygen. For refrigerant leaks use the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e or \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e; for CO see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range. As a leak locator it identifies the source, not atmosphere safety — measure entry conditions with a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor. Recharge between jobs and verify against a known source periodically.\u003c\/p\u003e\n\n\u003cp\u003eCross-shopping? This unit sits in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e hub alongside \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e, \u003ca href=\"\/products\/forensics-detectors-gas-leak-detector\" title=\"Forensics Gas Leak Detector\"\u003eForensics Gas Leak Detector\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"TopTes PT210S\"\u003eTopTes PT210S\u003c\/a\u003e. For other gas-detection form factors see \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\n\u003ch2 id=\"comparison\"\u003eTopTes combustible leak detector family compared\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003ccaption style=\"color:#bdae9d;font-size:0.85em;text-align:left;padding:4px 0;\"\u003eTopTes combustible gas leak detector family (natural gas, propane, methane)\u003c\/caption\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eProbe\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eDisplay \/ readout\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003ePower\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eStreet price\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"PT210S\"\u003ePT210S\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e4 in fixed\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e%LEL bar + alarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eAA batteries\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"PT520A\"\u003ePT520A\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e17 in gooseneck\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eTick-rate + alarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eAA batteries\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2520;\"\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003cstrong\u003e\u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"PT-830S\"\u003ePT-830S\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e14.5 in flexible\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eTFT color, 0-10000 ppm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eRechargeable\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$96\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003cul\u003e\n\u003cli\u003eChoose the \u003cstrong\u003ePT-830S\u003c\/strong\u003e for a rechargeable color-display sniffer with a long flexible probe.\u003c\/li\u003e\n\u003cli\u003ePick the \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"PT520A\"\u003ePT520A\u003c\/a\u003e for a longer 17-inch gooseneck on AA batteries at lower cost.\u003c\/li\u003e\n\u003cli\u003ePick the \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"PT210S\"\u003ePT210S\u003c\/a\u003e for the most affordable basic %LEL sniffer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat does the TopTes PT-830S detect?\u003c\/h3\u003e\u003cp\u003eIt detects combustible gases such as natural gas (methane), propane and butane from 0 to 10,000 ppm. It does not detect refrigerants, CO or oxygen.\u003c\/p\u003e\n\u003ch3\u003eIs the PT-830S rechargeable?\u003c\/h3\u003e\u003cp\u003eYes — it uses a rechargeable battery, so there are no disposable cells to manage between jobs.\u003c\/p\u003e\n\u003ch3\u003eHow long is the PT-830S probe?\u003c\/h3\u003e\u003cp\u003e14.5 inches and flexible, so it reaches behind appliances and into tight joints while holding its shape.\u003c\/p\u003e\n\u003ch3\u003eDoes it show the gas concentration?\u003c\/h3\u003e\u003cp\u003eYes — a TFT color display shows the reading as you approach the leak, which helps you pinpoint the exact source.\u003c\/p\u003e\n\u003ch3\u003eHow does the PT-830S compare to the PT520A and PT210S?\u003c\/h3\u003e\u003cp\u003eThe \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"PT520A\"\u003ePT520A\u003c\/a\u003e has a longer 17-inch gooseneck on AA batteries; the \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"PT210S\"\u003ePT210S\u003c\/a\u003e is the cheapest basic model; the PT-830S adds rechargeability and a color display.\u003c\/p\u003e\n\u003ch3\u003eCan it tell me if a space is safe?\u003c\/h3\u003e\u003cp\u003eNo — it locates leaks only. For entry safety use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor or \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e clip.\u003c\/p\u003e\n\u003ch3\u003eWhat alarm types does it have?\u003c\/h3\u003e\u003cp\u003eThree — audible, visual and vibration — so you get clear feedback in noisy or bright conditions.\u003c\/p\u003e\n\u003ch3\u003eDoes it detect refrigerant?\u003c\/h3\u003e\u003cp\u003eNo — for refrigerant use the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e or \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow do I find the exact leak?\u003c\/h3\u003e\u003cp\u003eSweep slowly along joints; the reading and alarm climb as you near the source, then peak at the leak point.\u003c\/p\u003e\n\u003ch3\u003eDoes it need calibration?\u003c\/h3\u003e\u003cp\u003eVerify response against a known combustible source periodically; semiconductor leak sensors drift over time and benefit from a sensitivity check.\u003c\/p\u003e\n\u003ch3\u003eIs it in stock and how does it ship?\u003c\/h3\u003e\u003cp\u003eUse the Amazon buy button for current availability and delivery timing through our fulfillment partner.\u003c\/p\u003e\n\u003ch3\u003eIs it suitable for confined-space work?\u003c\/h3\u003e\u003cp\u003eOnly to find a leak — confined-space entry requires atmospheric testing with a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e 4-gas instrument.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border:1px solid #3a3a3a;border-radius:6px;padding:16px 18px;margin:22px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#f5e6d3;\"\u003eReady to order the \u003cstrong\u003eTopTes PT-830S gas leak detector\u003c\/strong\u003e? Add it to your cart above, or check the current Amazon price below. Compare it against the rest of our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e lineup before you buy.\u003c\/p\u003e\n\u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0;\"\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B0DF71BXCD?tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:13px 26px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICE ON AMAZON →\u003c\/a\u003e\u003cspan style=\"font-size:0.8em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this TopTes page?\u003c\/strong\u003e WC Safety is an independent industrial safety-equipment retailer serving safety managers, procurement teams and field supervisors. The specifications here are taken from the manufacturer’s published listing for TopTes PT-830S and framed against \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e. Disclosed: WC Safety earns Amazon affiliate commissions on outbound clicks; that does not influence the specs shown or our lineup.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eBy Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, gas detection and instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast updated:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e manufacturer product listing \u0026amp; specifications, OSHA 29 CFR 1910.146, OSHA Annotated PEL tables, ACGIH Threshold Limit Values.\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Specs verified against the manufacturer’s published data.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this page is maintained.\u003c\/strong\u003e Specifications and pricing are reviewed against the manufacturer’s current listing and re-checked whenever the lineup changes. Gas-detection guidance follows \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA PELs\u003c\/a\u003e, cross-referenced with ACGIH TLVs.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases through outbound links on this page (tag wcsafety04-20). We are not sponsored by any instrument manufacturer. This page is buyer guidance, not medical, legal or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Product\", \"@id\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector#product\", \"name\": \"TopTes PT-830S Gas Leak Detector — Rechargeable, 14.5-in Probe, Color Display\", \"description\": \"TopTes PT-830S gas leak detector — rechargeable combustible sniffer with 14.5-in flexible probe, 0-10000 ppm and TFT color display. Order at WC Safety.\", \"sku\": \"B0DF71BXCD\", \"mpn\": \"PT-830S\", \"image\": [\"https:\/\/wcsafety.com\/cdn\/shop\/products\/toptes-pt-830s-gas-leak-detector.jpg\"], \"brand\": {\"@type\": \"Brand\", \"name\": \"TopTes\"}, \"category\": \"Gas Leak Detector\", \"isPartOf\": {\"@type\": \"CollectionPage\", \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\", \"name\": \"Gas Leak Detectors\", \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, \"isRelatedTo\": [{\"@type\": \"Product\", \"name\": \"Klein Tools ET120 Combustible Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Forensics Detectors Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT520A Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT210S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Elitech ILD-200 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes RT-389 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector\"}], \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector\", \"priceCurrency\": \"USD\", \"price\": \"95.61\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"WC Safety\"}}}, {\"@type\": \"BreadcrumbList\", \"@id\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector#breadcrumb\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wcsafety.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Gas Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Gas Leak Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"TopTes PT-830S Gas Leak Detector — Rechargeable, 14.5-in Probe, Color Display\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the TopTes PT-830S detect?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It detects combustible gases such as natural gas (methane), propane and butane from 0 to 10,000 ppm. It does not detect refrigerants, CO or oxygen.\"}}, {\"@type\": \"Question\", \"name\": \"Is the PT-830S rechargeable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it uses a rechargeable battery, so there are no disposable cells to manage between jobs.\"}}, {\"@type\": \"Question\", \"name\": \"How long is the PT-830S probe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"14.5 inches and flexible, so it reaches behind appliances and into tight joints while holding its shape.\"}}, {\"@type\": \"Question\", \"name\": \"Does it show the gas concentration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — a TFT color display shows the reading as you approach the leak, which helps you pinpoint the exact source.\"}}, {\"@type\": \"Question\", \"name\": \"How does the PT-830S compare to the PT520A and PT210S?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PT520A has a longer 17-inch gooseneck on AA batteries; the PT210S is the cheapest basic model; the PT-830S adds rechargeability and a color display.\"}}, {\"@type\": \"Question\", \"name\": \"Can it tell me if a space is safe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it locates leaks only. For entry safety use a Portable Gas Detectors monitor or Personal \u0026 Wearable Gas Detectors clip.\"}}, {\"@type\": \"Question\", \"name\": \"What alarm types does it have?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Three — audible, visual and vibration — so you get clear feedback in noisy or bright conditions.\"}}, {\"@type\": \"Question\", \"name\": \"Does it detect refrigerant?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — for refrigerant use the TopTes RT-389 or Fieldpiece DR58.\"}}, {\"@type\": \"Question\", \"name\": \"How do I find the exact leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Sweep slowly along joints; the reading and alarm climb as you near the source, then peak at the leak point.\"}}, {\"@type\": \"Question\", \"name\": \"Does it need calibration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Verify response against a known combustible source periodically; semiconductor leak sensors drift over time and benefit from a sensitivity check.\"}}, {\"@type\": \"Question\", \"name\": \"Is it in stock and how does it ship?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.\"}}, {\"@type\": \"Question\", \"name\": \"Is it suitable for confined-space work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Only to find a leak — confined-space entry requires atmospheric testing with a Portable Gas Detectors 4-gas instrument.\"}}]}, {\"@type\": \"Organization\", \"@id\": \"https:\/\/wcsafety.com\/#org\", \"name\": \"WC Safety\", \"url\": \"https:\/\/wcsafety.com\", \"logo\": \"https:\/\/wcsafety.com\/cdn\/shop\/files\/logo.png\"}, {\"@type\": \"Person\", \"@id\": \"https:\/\/wcsafety.com\/#editor\", \"name\": \"Steven Eaton\", \"jobTitle\": \"Editorial Lead\", \"worksFor\": {\"@id\": \"https:\/\/wcsafety.com\/#org\"}, \"knowsAbout\": [\"industrial gas detection\", \"atmospheric monitoring\", \"personal protective equipment\"]}, {\"@type\": \"Brand\", \"name\": \"TopTes\"}]}\n\u003c\/script\u003e","brand":"TopTes","offers":[{"title":"Default Title","offer_id":44266483155032,"sku":"B0DF71BXCD","price":95.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/71CCpJDwD7L._AC_SL1500.jpg?v=1782122409"},{"product_id":"toptes-pt520a-gas-leak-detector","title":"TopTes PT520A Gas Leak Detector — 17-in Gooseneck (Natural Gas, Propane, Methane)","description":"\u003c!-- PRODUCT B0BTM3G8DK | tag gas-leak-detector | TODO: add matching Product Review + best-of guide links when those silo layers exist --\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:14px 18px;margin:0 0 18px 0;color:#f5e6d3;font-size:0.95em;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eEditor’s note:\u003c\/strong\u003e the TopTes PT520A gas leak detector is one of the instruments we curate in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e buyer’s hub. Compare it with the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e below before you order.\u003c\/div\u003e\n\n\u003ch2 id=\"top\"\u003eTopTes PT520A Gas Leak Detector — 17-Inch Gooseneck Sniffer\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eTopTes PT520A gas leak detector\u003c\/strong\u003e is the value workhorse — a \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"gas leak detector\"\u003egas leak detector\u003c\/a\u003e with a 17-inch gooseneck for combustible gases such as natural gas (methane), propane and butane and a huge review base. Affordable enough to put in every truck, it traces the leak source without claiming to measure air safety.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#bdae9d;margin:10px 0 18px 0;\"\u003eJump to: \u003ca href=\"#features\" style=\"color:#ffb74d;\"\u003eFeatures\u003c\/a\u003e · \u003ca href=\"#specs\" style=\"color:#ffb74d;\"\u003eSpecs\u003c\/a\u003e · \u003ca href=\"#compatibility\" style=\"color:#ffb74d;\"\u003eWhat it detects\u003c\/a\u003e · \u003ca href=\"#comparison\" style=\"color:#ffb74d;\"\u003eComparison\u003c\/a\u003e · \u003ca href=\"#faq\" style=\"color:#ffb74d;\"\u003eFAQ\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe TopTes PT520A is an affordable combustible gas leak detector with a 17-inch gooseneck probe and audible\/visual alarms for natural gas, propane and methane.\u003c\/p\u003e\n\n\u003ch3 id=\"features\"\u003eKey features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eTraces natural gas, propane, methane and butane leaks to the source\u003c\/li\u003e\n\u003cli\u003eLong 17-inch gooseneck reaches behind and under appliances and fittings\u003c\/li\u003e\n\u003cli\u003eAudible tick-rate and visual indication that climb near the leak\u003c\/li\u003e\n\u003cli\u003eOur best-selling leak detector — 3,800+ ratings at 4.6 stars\u003c\/li\u003e\n\u003cli\u003eRuns on AA batteries (three included) — grab-and-go simplicity\u003c\/li\u003e\n\u003cli\u003eAffordable enough to keep one in every truck and toolbox\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#1b3a2a;border:1px solid #4caf50;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#81c784;\"\u003ePros\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eLowest-cost long-gooseneck sniffer\u003c\/li\u003e\n\u003cli\u003eHuge 3,800+ review track record (4.6)\u003c\/li\u003e\n\u003cli\u003e17-inch reach\u003c\/li\u003e\n\u003cli\u003eSimple AA-battery operation\u003c\/li\u003e\n\u003cli\u003eGreat value for trucks\/tool cribs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#3a1e1e;border:1px solid #ef5350;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#e57373;\"\u003eCons\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eLocates leaks — not an atmosphere safety monitor\u003c\/li\u003e\n\u003cli\u003eCombustible gases only\u003c\/li\u003e\n\u003cli\u003eTick-rate readout only (no concentration display)\u003c\/li\u003e\n\u003cli\u003eNot for confined-space entry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 id=\"specs\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eNatural gas, propane, methane, butane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eProbe\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e17-inch gooseneck\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eAlarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eAudible tick-rate + visual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eAA batteries (3 included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eUse\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eHome, RV and light-industrial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eOrange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eWhere the TopTes PT520A fits\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eNatural-gas and propane leak checks\u003c\/li\u003e\n\u003cli\u003eAppliance, RV and grill connections\u003c\/li\u003e\n\u003cli\u003ePlumbing and HVAC gas lines\u003c\/li\u003e\n\u003cli\u003eTruck\/toolbox spare sniffer\u003c\/li\u003e\n\u003cli\u003eQuick recheck after a repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"compatibility\"\u003eWhat the TopTes PT520A detects (and what it doesn’t)\u003c\/h2\u003e\n\n\u003cp\u003eIt finds combustible gases such as natural gas (methane), propane and butane — not refrigerants, CO or oxygen. For refrigerant work see the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e; for CO the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range. It locates leaks; it does not measure whether a space is safe — use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor for entry decisions. The long gooseneck and tick-rate make it easy to sweep a line and pinpoint the joint.\u003c\/p\u003e\n\n\u003cp\u003eCross-shopping? This unit sits in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e hub alongside \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e, \u003ca href=\"\/products\/forensics-detectors-gas-leak-detector\" title=\"Forensics Gas Leak Detector\"\u003eForensics Gas Leak Detector\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"TopTes PT-830S\"\u003eTopTes PT-830S\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"TopTes PT210S\"\u003eTopTes PT210S\u003c\/a\u003e. For other gas-detection form factors see \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\n\u003ch2 id=\"comparison\"\u003eTopTes combustible leak detector family compared\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003ccaption style=\"color:#bdae9d;font-size:0.85em;text-align:left;padding:4px 0;\"\u003eTopTes combustible gas leak detector family (natural gas, propane, methane)\u003c\/caption\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eProbe\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eDisplay \/ readout\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003ePower\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eStreet price\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"PT210S\"\u003ePT210S\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e4 in fixed\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e%LEL bar + alarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eAA batteries\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"PT520A\"\u003ePT520A\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e17 in gooseneck\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eTick-rate + alarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eAA batteries\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2520;\"\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003cstrong\u003e\u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"PT-830S\"\u003ePT-830S\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e14.5 in flexible\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eTFT color, 0-10000 ppm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eRechargeable\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$96\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003cul\u003e\n\u003cli\u003eChoose the \u003cstrong\u003ePT520A\u003c\/strong\u003e for the best value long-gooseneck combustible sniffer with a massive review record.\u003c\/li\u003e\n\u003cli\u003eStep up to the \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"PT-830S\"\u003ePT-830S\u003c\/a\u003e for rechargeable power and a color concentration display.\u003c\/li\u003e\n\u003cli\u003eGo cheaper\/smaller with the \u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"PT210S\"\u003ePT210S\u003c\/a\u003e 4-inch %LEL sniffer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat does the TopTes PT520A detect?\u003c\/h3\u003e\u003cp\u003eCombustible gases — natural gas, propane, methane and butane. It does not detect refrigerants, CO or oxygen.\u003c\/p\u003e\n\u003ch3\u003eHow long is the PT520A gooseneck?\u003c\/h3\u003e\u003cp\u003e17 inches and flexible, giving excellent reach behind and under appliances and along fittings.\u003c\/p\u003e\n\u003ch3\u003eIs the PT520A rechargeable?\u003c\/h3\u003e\u003cp\u003eNo — it runs on AA batteries (three included). For a rechargeable model with a color display, see the \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"PT-830S\"\u003ePT-830S\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhy is the PT520A so popular?\u003c\/h3\u003e\u003cp\u003eIt pairs a long gooseneck and reliable tick-rate alarm with a very low price, which is why it has over 3,800 ratings and is a common truck\/toolbox staple.\u003c\/p\u003e\n\u003ch3\u003eCan it tell me if a space is safe to enter?\u003c\/h3\u003e\u003cp\u003eNo — it locates leaks only. Measure entry conditions with a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor or \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e clip.\u003c\/p\u003e\n\u003ch3\u003eHow do I pinpoint the leak?\u003c\/h3\u003e\u003cp\u003eSweep slowly along the line; the audible tick-rate speeds up and the visual indicator climbs as you approach, peaking at the leak.\u003c\/p\u003e\n\u003ch3\u003eDoes it show the gas concentration?\u003c\/h3\u003e\u003cp\u003eIt uses a tick-rate and visual indicator rather than a numeric display. For a concentration readout, choose the \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"PT-830S\"\u003ePT-830S\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes it detect refrigerant or CO?\u003c\/h3\u003e\u003cp\u003eNo — for refrigerant use the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e; for CO see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\u003ch3\u003eWill it find a propane or grill leak?\u003c\/h3\u003e\u003cp\u003eYes — it detects propane and butane, which makes it handy for grills, RVs and LP appliances as well as natural-gas lines.\u003c\/p\u003e\n\u003ch3\u003eIs it in stock and how does it ship?\u003c\/h3\u003e\u003cp\u003eUse the Amazon buy button for current availability and delivery timing through our fulfillment partner.\u003c\/p\u003e\n\u003ch3\u003eHow does it compare to the Klein ET120?\u003c\/h3\u003e\u003cp\u003eThe \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein ET120\"\u003eKlein ET120\u003c\/a\u003e adds a numeric ppm range and trusted-brand build at a higher price; the PT520A is the budget long-gooseneck option.\u003c\/p\u003e\n\u003ch3\u003eCan I use it for confined-space work?\u003c\/h3\u003e\u003cp\u003eOnly to find a leak — entry still requires atmospheric testing with a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e 4-gas instrument.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border:1px solid #3a3a3a;border-radius:6px;padding:16px 18px;margin:22px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#f5e6d3;\"\u003eReady to order the \u003cstrong\u003eTopTes PT520A gas leak detector\u003c\/strong\u003e? Add it to your cart above, or check the current Amazon price below. Compare it against the rest of our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e lineup before you buy.\u003c\/p\u003e\n\u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0;\"\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B0BTM3G8DK?tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:13px 26px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICE ON AMAZON →\u003c\/a\u003e\u003cspan style=\"font-size:0.8em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this TopTes page?\u003c\/strong\u003e WC Safety is an independent industrial safety-equipment retailer serving safety managers, procurement teams and field supervisors. The specifications here are taken from the manufacturer’s published listing for TopTes PT520A and framed against \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e. Disclosed: WC Safety earns Amazon affiliate commissions on outbound clicks; that does not influence the specs shown or our lineup.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eBy Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, gas detection and instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast updated:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e manufacturer product listing \u0026amp; specifications, OSHA 29 CFR 1910.146, OSHA Annotated PEL tables, ACGIH Threshold Limit Values.\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Specs verified against the manufacturer’s published data.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this page is maintained.\u003c\/strong\u003e Specifications and pricing are reviewed against the manufacturer’s current listing and re-checked whenever the lineup changes. Gas-detection guidance follows \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA PELs\u003c\/a\u003e, cross-referenced with ACGIH TLVs.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases through outbound links on this page (tag wcsafety04-20). We are not sponsored by any instrument manufacturer. This page is buyer guidance, not medical, legal or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Product\", \"@id\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector#product\", \"name\": \"TopTes PT520A Gas Leak Detector — 17-in Gooseneck (Natural Gas, Propane, Methane)\", \"description\": \"TopTes PT520A gas leak detector — combustible sniffer with 17-in gooseneck for natural gas, propane and methane. 3,800+ reviews. Order at WC Safety.\", \"sku\": \"B0BTM3G8DK\", \"mpn\": \"PT520A\", \"image\": [\"https:\/\/wcsafety.com\/cdn\/shop\/products\/toptes-pt520a-gas-leak-detector.jpg\"], \"brand\": {\"@type\": \"Brand\", \"name\": \"TopTes\"}, \"category\": \"Gas Leak Detector\", \"isPartOf\": {\"@type\": \"CollectionPage\", \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\", \"name\": \"Gas Leak Detectors\", \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, \"isRelatedTo\": [{\"@type\": \"Product\", \"name\": \"Klein Tools ET120 Combustible Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Forensics Detectors Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT-830S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT210S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Elitech ILD-200 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes RT-389 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector\"}], \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector\", \"priceCurrency\": \"USD\", \"price\": \"42.49\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"WC Safety\"}}}, {\"@type\": \"BreadcrumbList\", \"@id\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector#breadcrumb\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wcsafety.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Gas Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Gas Leak Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"TopTes PT520A Gas Leak Detector — 17-in Gooseneck (Natural Gas, Propane, Methane)\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the TopTes PT520A detect?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Combustible gases — natural gas, propane, methane and butane. It does not detect refrigerants, CO or oxygen.\"}}, {\"@type\": \"Question\", \"name\": \"How long is the PT520A gooseneck?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"17 inches and flexible, giving excellent reach behind and under appliances and along fittings.\"}}, {\"@type\": \"Question\", \"name\": \"Is the PT520A rechargeable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it runs on AA batteries (three included). For a rechargeable model with a color display, see the PT-830S.\"}}, {\"@type\": \"Question\", \"name\": \"Why is the PT520A so popular?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It pairs a long gooseneck and reliable tick-rate alarm with a very low price, which is why it has over 3,800 ratings and is a common truck\/toolbox staple.\"}}, {\"@type\": \"Question\", \"name\": \"Can it tell me if a space is safe to enter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it locates leaks only. Measure entry conditions with a Portable Gas Detectors monitor or Personal \u0026 Wearable Gas Detectors clip.\"}}, {\"@type\": \"Question\", \"name\": \"How do I pinpoint the leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Sweep slowly along the line; the audible tick-rate speeds up and the visual indicator climbs as you approach, peaking at the leak.\"}}, {\"@type\": \"Question\", \"name\": \"Does it show the gas concentration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It uses a tick-rate and visual indicator rather than a numeric display. For a concentration readout, choose the PT-830S.\"}}, {\"@type\": \"Question\", \"name\": \"Does it detect refrigerant or CO?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — for refrigerant use the TopTes RT-389; for CO see the Carbon Monoxide Alarms \u0026 Detectors range.\"}}, {\"@type\": \"Question\", \"name\": \"Will it find a propane or grill leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it detects propane and butane, which makes it handy for grills, RVs and LP appliances as well as natural-gas lines.\"}}, {\"@type\": \"Question\", \"name\": \"Is it in stock and how does it ship?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.\"}}, {\"@type\": \"Question\", \"name\": \"How does it compare to the Klein ET120?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Klein ET120 adds a numeric ppm range and trusted-brand build at a higher price; the PT520A is the budget long-gooseneck option.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use it for confined-space work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Only to find a leak — entry still requires atmospheric testing with a Portable Gas Detectors 4-gas instrument.\"}}]}, {\"@type\": \"Organization\", \"@id\": \"https:\/\/wcsafety.com\/#org\", \"name\": \"WC Safety\", \"url\": \"https:\/\/wcsafety.com\", \"logo\": \"https:\/\/wcsafety.com\/cdn\/shop\/files\/logo.png\"}, {\"@type\": \"Person\", \"@id\": \"https:\/\/wcsafety.com\/#editor\", \"name\": \"Steven Eaton\", \"jobTitle\": \"Editorial Lead\", \"worksFor\": {\"@id\": \"https:\/\/wcsafety.com\/#org\"}, \"knowsAbout\": [\"industrial gas detection\", \"atmospheric monitoring\", \"personal protective equipment\"]}, {\"@type\": \"Brand\", \"name\": \"TopTes\"}]}\n\u003c\/script\u003e","brand":"TopTes","offers":[{"title":"Default Title","offer_id":44266483286104,"sku":"B0BTM3G8DK","price":42.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/718k6noTUgL._AC_SL1500.jpg?v=1782122413"},{"product_id":"toptes-pt210s-gas-leak-detector","title":"TopTes PT210S Gas Leak Detector — 4-in Probe, %LEL (Natural Gas, Methane)","description":"\u003c!-- PRODUCT B0C73NQC73 | tag gas-leak-detector | TODO: add matching Product Review + best-of guide links when those silo layers exist --\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:14px 18px;margin:0 0 18px 0;color:#f5e6d3;font-size:0.95em;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eEditor’s note:\u003c\/strong\u003e the TopTes PT210S gas leak detector is one of the instruments we curate in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e buyer’s hub. Compare it with the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e below before you order.\u003c\/div\u003e\n\n\u003ch2 id=\"top\"\u003eTopTes PT210S Gas Leak Detector — Compact %LEL Combustible Sniffer\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eTopTes PT210S gas leak detector\u003c\/strong\u003e is the pocketable, lowest-cost way to check for combustible gases such as natural gas (methane), propane and butane — a \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"gas leak detector\"\u003egas leak detector\u003c\/a\u003e with a %LEL bar readout and a 4-inch probe for fast checks at fittings and valves. It finds the leak; it does not measure air safety.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#bdae9d;margin:10px 0 18px 0;\"\u003eJump to: \u003ca href=\"#features\" style=\"color:#ffb74d;\"\u003eFeatures\u003c\/a\u003e · \u003ca href=\"#specs\" style=\"color:#ffb74d;\"\u003eSpecs\u003c\/a\u003e · \u003ca href=\"#compatibility\" style=\"color:#ffb74d;\"\u003eWhat it detects\u003c\/a\u003e · \u003ca href=\"#comparison\" style=\"color:#ffb74d;\"\u003eComparison\u003c\/a\u003e · \u003ca href=\"#faq\" style=\"color:#ffb74d;\"\u003eFAQ\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe TopTes PT210S is a compact, low-cost combustible gas leak detector with a 4-inch probe and a %LEL bar readout for natural gas, methane and propane.\u003c\/p\u003e\n\n\u003ch3 id=\"features\"\u003eKey features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eCompact combustible sniffer that reads in %LEL with a bar indicator\u003c\/li\u003e\n\u003cli\u003e4-inch probe for quick checks at fittings, valves and appliances\u003c\/li\u003e\n\u003cli\u003eAudible and visual alarms that climb as you near the leak\u003c\/li\u003e\n\u003cli\u003eLightweight (~67 g) and pocketable for grab-and-go checks\u003c\/li\u003e\n\u003cli\u003eLowest price in our leak-detector lineup, with 1,400+ ratings\u003c\/li\u003e\n\u003cli\u003eRuns on included AA batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#1b3a2a;border:1px solid #4caf50;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#81c784;\"\u003ePros\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eLowest-cost combustible sniffer\u003c\/li\u003e\n\u003cli\u003e%LEL bar readout\u003c\/li\u003e\n\u003cli\u003eCompact and pocketable\u003c\/li\u003e\n\u003cli\u003eStrong 4.6-star, 1,400+ reviews\u003c\/li\u003e\n\u003cli\u003eAA batteries included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#3a1e1e;border:1px solid #ef5350;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#e57373;\"\u003eCons\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eShort 4-inch probe (less reach)\u003c\/li\u003e\n\u003cli\u003eLocates leaks — not an atmosphere safety monitor\u003c\/li\u003e\n\u003cli\u003eCombustible gases only\u003c\/li\u003e\n\u003cli\u003eSemiconductor sensor needs periodic verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 id=\"specs\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eNatural gas, methane, propane, combustibles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eReadout\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e%LEL with bar indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eProbe\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e4-inch fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eAlarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eAudible \u0026amp; visual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eSensor\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eSemiconductor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eAA batteries (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e~67 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eWhere the TopTes PT210S fits\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eQuick fitting and valve leak checks\u003c\/li\u003e\n\u003cli\u003eHomeowner and light-trade use\u003c\/li\u003e\n\u003cli\u003eGrill, RV and appliance connections\u003c\/li\u003e\n\u003cli\u003eBackup pocket sniffer\u003c\/li\u003e\n\u003cli\u003eFast recheck after a repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"compatibility\"\u003eWhat the TopTes PT210S detects (and what it doesn’t)\u003c\/h2\u003e\n\n\u003cp\u003eIt detects combustible gases such as natural gas (methane), propane and butane — not refrigerants, CO or oxygen. For refrigerant use the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e; for CO see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range. The short 4-inch probe suits quick checks at accessible fittings; for behind-appliance reach choose a gooseneck model like the \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"PT520A\"\u003ePT520A\u003c\/a\u003e. It locates leaks only — for entry safety use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor.\u003c\/p\u003e\n\n\u003cp\u003eCross-shopping? This unit sits in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e hub alongside \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e, \u003ca href=\"\/products\/forensics-detectors-gas-leak-detector\" title=\"Forensics Gas Leak Detector\"\u003eForensics Gas Leak Detector\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"TopTes PT-830S\"\u003eTopTes PT-830S\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e. For other gas-detection form factors see \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\n\u003ch2 id=\"comparison\"\u003eTopTes combustible leak detector family compared\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003ccaption style=\"color:#bdae9d;font-size:0.85em;text-align:left;padding:4px 0;\"\u003eTopTes combustible gas leak detector family (natural gas, propane, methane)\u003c\/caption\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eProbe\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eDisplay \/ readout\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003ePower\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:9px;border:1px solid #3a3a3a;text-align:left;\"\u003eStreet price\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003ca href=\"\/products\/toptes-pt210s-gas-leak-detector\" title=\"PT210S\"\u003ePT210S\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e4 in fixed\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e%LEL bar + alarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eAA batteries\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"PT520A\"\u003ePT520A\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e17 in gooseneck\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eTick-rate + alarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eAA batteries\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2520;\"\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e\u003cstrong\u003e\u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"PT-830S\"\u003ePT-830S\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e14.5 in flexible\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eTFT color, 0-10000 ppm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003eRechargeable\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:9px;border:1px solid #3a3a3a;\"\u003e~$96\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003cul\u003e\n\u003cli\u003eChoose the \u003cstrong\u003ePT210S\u003c\/strong\u003e for the cheapest, most pocketable combustible sniffer with a %LEL readout.\u003c\/li\u003e\n\u003cli\u003eNeed more reach? The \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"PT520A\"\u003ePT520A\u003c\/a\u003e adds a 17-inch gooseneck.\u003c\/li\u003e\n\u003cli\u003eWant rechargeable + color display? Step up to the \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"PT-830S\"\u003ePT-830S\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat does the TopTes PT210S detect?\u003c\/h3\u003e\u003cp\u003eCombustible gases — natural gas, methane and propane — shown as %LEL. It does not detect refrigerants, CO or oxygen.\u003c\/p\u003e\n\u003ch3\u003eWhat does the %LEL readout mean?\u003c\/h3\u003e\u003cp\u003eIt shows combustible gas as a percentage of the Lower Explosive Limit, so you can see how strong a leak is as you sweep, not just that gas is present.\u003c\/p\u003e\n\u003ch3\u003eHow long is the PT210S probe?\u003c\/h3\u003e\u003cp\u003eIt has a short 4-inch fixed probe for quick checks at accessible fittings. For behind-appliance reach, choose the \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"PT520A\"\u003ePT520A\u003c\/a\u003e with a 17-inch gooseneck.\u003c\/p\u003e\n\u003ch3\u003eIs it good as a backup or homeowner tool?\u003c\/h3\u003e\u003cp\u003eYes — it is the lowest-cost, most pocketable option in the lineup, which makes it popular as a backup sniffer and for light-trade and homeowner use.\u003c\/p\u003e\n\u003ch3\u003eCan it tell me if a space is safe?\u003c\/h3\u003e\u003cp\u003eNo — it locates leaks only. For entry safety use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor or \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e clip.\u003c\/p\u003e\n\u003ch3\u003eIs the PT210S rechargeable?\u003c\/h3\u003e\u003cp\u003eNo — it runs on included AA batteries. For a rechargeable color-display model see the \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"PT-830S\"\u003ePT-830S\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow do I pinpoint a leak with it?\u003c\/h3\u003e\u003cp\u003eHold the probe near fittings and valves and move slowly; the %LEL bar and alarm rise as you approach the leak.\u003c\/p\u003e\n\u003ch3\u003eDoes it detect refrigerant or CO?\u003c\/h3\u003e\u003cp\u003eNo — for refrigerant use the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e; for CO see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\u003ch3\u003eWill it detect propane?\u003c\/h3\u003e\u003cp\u003eYes — it detects propane along with natural gas and methane, so it works for grills, RVs and LP appliances.\u003c\/p\u003e\n\u003ch3\u003eIs it in stock and how does it ship?\u003c\/h3\u003e\u003cp\u003eUse the Amazon buy button for current availability and delivery timing through our fulfillment partner.\u003c\/p\u003e\n\u003ch3\u003eDoes it need calibration?\u003c\/h3\u003e\u003cp\u003eVerify response against a known combustible source periodically; semiconductor sensors benefit from an occasional sensitivity check.\u003c\/p\u003e\n\u003ch3\u003eCan I use it for confined-space entry?\u003c\/h3\u003e\u003cp\u003eOnly to find a leak — entry requires atmospheric testing with a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e 4-gas instrument.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border:1px solid #3a3a3a;border-radius:6px;padding:16px 18px;margin:22px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#f5e6d3;\"\u003eReady to order the \u003cstrong\u003eTopTes PT210S gas leak detector\u003c\/strong\u003e? Add it to your cart above, or check the current Amazon price below. Compare it against the rest of our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e lineup before you buy.\u003c\/p\u003e\n\u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0;\"\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B0C73NQC73?tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:13px 26px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICE ON AMAZON →\u003c\/a\u003e\u003cspan style=\"font-size:0.8em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this TopTes page?\u003c\/strong\u003e WC Safety is an independent industrial safety-equipment retailer serving safety managers, procurement teams and field supervisors. The specifications here are taken from the manufacturer’s published listing for TopTes PT210S and framed against \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e. Disclosed: WC Safety earns Amazon affiliate commissions on outbound clicks; that does not influence the specs shown or our lineup.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eBy Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, gas detection and instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast updated:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e manufacturer product listing \u0026amp; specifications, OSHA 29 CFR 1910.146, OSHA Annotated PEL tables, ACGIH Threshold Limit Values.\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Specs verified against the manufacturer’s published data.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this page is maintained.\u003c\/strong\u003e Specifications and pricing are reviewed against the manufacturer’s current listing and re-checked whenever the lineup changes. Gas-detection guidance follows \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA PELs\u003c\/a\u003e, cross-referenced with ACGIH TLVs.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases through outbound links on this page (tag wcsafety04-20). We are not sponsored by any instrument manufacturer. This page is buyer guidance, not medical, legal or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Product\", \"@id\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector#product\", \"name\": \"TopTes PT210S Gas Leak Detector — 4-in Probe, %LEL (Natural Gas, Methane)\", \"description\": \"TopTes PT210S gas leak detector — compact combustible sniffer with 4-in probe and %LEL readout for natural gas, methane and propane. Order at WC Safety.\", \"sku\": \"B0C73NQC73\", \"mpn\": \"PT210S\", \"image\": [\"https:\/\/wcsafety.com\/cdn\/shop\/products\/toptes-pt210s-gas-leak-detector.jpg\"], \"brand\": {\"@type\": \"Brand\", \"name\": \"TopTes\"}, \"category\": \"Gas Leak Detector\", \"isPartOf\": {\"@type\": \"CollectionPage\", \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\", \"name\": \"Gas Leak Detectors\", \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, \"isRelatedTo\": [{\"@type\": \"Product\", \"name\": \"Klein Tools ET120 Combustible Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Forensics Detectors Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT-830S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT520A Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Elitech ILD-200 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes RT-389 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector\"}], \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector\", \"priceCurrency\": \"USD\", \"price\": \"31.87\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"WC Safety\"}}}, {\"@type\": \"BreadcrumbList\", \"@id\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector#breadcrumb\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wcsafety.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Gas Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Gas Leak Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"TopTes PT210S Gas Leak Detector — 4-in Probe, %LEL (Natural Gas, Methane)\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the TopTes PT210S detect?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Combustible gases — natural gas, methane and propane — shown as %LEL. It does not detect refrigerants, CO or oxygen.\"}}, {\"@type\": \"Question\", \"name\": \"What does the %LEL readout mean?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It shows combustible gas as a percentage of the Lower Explosive Limit, so you can see how strong a leak is as you sweep, not just that gas is present.\"}}, {\"@type\": \"Question\", \"name\": \"How long is the PT210S probe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It has a short 4-inch fixed probe for quick checks at accessible fittings. For behind-appliance reach, choose the PT520A with a 17-inch gooseneck.\"}}, {\"@type\": \"Question\", \"name\": \"Is it good as a backup or homeowner tool?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it is the lowest-cost, most pocketable option in the lineup, which makes it popular as a backup sniffer and for light-trade and homeowner use.\"}}, {\"@type\": \"Question\", \"name\": \"Can it tell me if a space is safe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it locates leaks only. For entry safety use a Portable Gas Detectors monitor or Personal \u0026 Wearable Gas Detectors clip.\"}}, {\"@type\": \"Question\", \"name\": \"Is the PT210S rechargeable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it runs on included AA batteries. For a rechargeable color-display model see the PT-830S.\"}}, {\"@type\": \"Question\", \"name\": \"How do I pinpoint a leak with it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold the probe near fittings and valves and move slowly; the %LEL bar and alarm rise as you approach the leak.\"}}, {\"@type\": \"Question\", \"name\": \"Does it detect refrigerant or CO?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — for refrigerant use the TopTes RT-389; for CO see the Carbon Monoxide Alarms \u0026 Detectors range.\"}}, {\"@type\": \"Question\", \"name\": \"Will it detect propane?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it detects propane along with natural gas and methane, so it works for grills, RVs and LP appliances.\"}}, {\"@type\": \"Question\", \"name\": \"Is it in stock and how does it ship?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.\"}}, {\"@type\": \"Question\", \"name\": \"Does it need calibration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Verify response against a known combustible source periodically; semiconductor sensors benefit from an occasional sensitivity check.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use it for confined-space entry?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Only to find a leak — entry requires atmospheric testing with a Portable Gas Detectors 4-gas instrument.\"}}]}, {\"@type\": \"Organization\", \"@id\": \"https:\/\/wcsafety.com\/#org\", \"name\": \"WC Safety\", \"url\": \"https:\/\/wcsafety.com\", \"logo\": \"https:\/\/wcsafety.com\/cdn\/shop\/files\/logo.png\"}, {\"@type\": \"Person\", \"@id\": \"https:\/\/wcsafety.com\/#editor\", \"name\": \"Steven Eaton\", \"jobTitle\": \"Editorial Lead\", \"worksFor\": {\"@id\": \"https:\/\/wcsafety.com\/#org\"}, \"knowsAbout\": [\"industrial gas detection\", \"atmospheric monitoring\", \"personal protective equipment\"]}, {\"@type\": \"Brand\", \"name\": \"TopTes\"}]}\n\u003c\/script\u003e","brand":"TopTes","offers":[{"title":"Default Title","offer_id":44266483449944,"sku":"B0C73NQC73","price":31.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/61cuB_1woUL._AC_SL1500.jpg?v=1782122417"},{"product_id":"fieldpiece-dr58-refrigerant-leak-detector","title":"Fieldpiece DR58 Refrigerant Leak Detector — Heated Diode, Ultra-Sensitive","description":"\u003c!-- PRODUCT B097SW9VJS | tag gas-leak-detector | TODO: add matching Product Review + best-of guide links when those silo layers exist --\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:14px 18px;margin:0 0 18px 0;color:#f5e6d3;font-size:0.95em;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eEditor’s note:\u003c\/strong\u003e the Fieldpiece DR58 refrigerant leak detector is one of the instruments we curate in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e buyer’s hub. Compare it with the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e below before you order.\u003c\/div\u003e\n\n\u003ch2 id=\"top\"\u003eFieldpiece DR58 Refrigerant Leak Detector — Heated-Diode HVAC Sniffer\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eFieldpiece DR58 refrigerant leak detector\u003c\/strong\u003e is a pro-grade, ultra-sensitive heated-diode sniffer for halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) — the \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"gas leak detector\"\u003egas leak detector\u003c\/a\u003e HVAC technicians reach for to chase small refrigerant losses to their source. It finds the leak; it is not an atmosphere-safety monitor.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#bdae9d;margin:10px 0 18px 0;\"\u003eJump to: \u003ca href=\"#features\" style=\"color:#ffb74d;\"\u003eFeatures\u003c\/a\u003e · \u003ca href=\"#specs\" style=\"color:#ffb74d;\"\u003eSpecs\u003c\/a\u003e · \u003ca href=\"#compatibility\" style=\"color:#ffb74d;\"\u003eWhat it detects\u003c\/a\u003e · \u003ca href=\"#comparison\" style=\"color:#ffb74d;\"\u003eComparison\u003c\/a\u003e · \u003ca href=\"#faq\" style=\"color:#ffb74d;\"\u003eFAQ\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Fieldpiece DR58 is a pro-grade heated-diode refrigerant leak detector with a large backlit LCD that pinpoints CFC, HCFC, HFC and HFO refrigerant leaks.\u003c\/p\u003e\n\n\u003ch3 id=\"features\"\u003eKey features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003ePinpoints halogenated refrigerant leaks with an ultra-sensitive heated-diode sensor\u003c\/li\u003e\n\u003cli\u003eLarge backlit LCD shows leak intensity as you home in\u003c\/li\u003e\n\u003cli\u003ePro-grade Fieldpiece build trusted by HVAC technicians\u003c\/li\u003e\n\u003cli\u003eLightweight, balanced tool for overhead and tight coil access\u003c\/li\u003e\n\u003cli\u003eDetects CFC, HCFC, HFC and HFO refrigerants\u003c\/li\u003e\n\u003cli\u003eStrong 4.6-star rating among HVAC pros\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#1b3a2a;border:1px solid #4caf50;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#81c784;\"\u003ePros\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003ePro-grade Fieldpiece reliability\u003c\/li\u003e\n\u003cli\u003eUltra-sensitive heated-diode sensor\u003c\/li\u003e\n\u003cli\u003eLarge backlit LCD leak readout\u003c\/li\u003e\n\u003cli\u003eBroad refrigerant coverage\u003c\/li\u003e\n\u003cli\u003eTop 4.6-star HVAC reviews\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#3a1e1e;border:1px solid #ef5350;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#e57373;\"\u003eCons\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003ePremium price\u003c\/li\u003e\n\u003cli\u003eRefrigerants only (not combustibles or toxics)\u003c\/li\u003e\n\u003cli\u003eHeated-diode sensors are wear items needing replacement\u003c\/li\u003e\n\u003cli\u003eNot an atmosphere safety monitor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 id=\"specs\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eHalogenated refrigerants (CFCs, HCFCs, HFCs, HFOs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eSensor\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eHeated diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eSensitivity\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eUltra-sensitive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eDisplay\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eLarge backlit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eDesign\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eLightweight HVAC tool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eAlarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eVisual + audible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e~3 lb (kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eWhere the Fieldpiece DR58 fits\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eHVAC\/R service and leak repair\u003c\/li\u003e\n\u003cli\u003eCoil, joint and fitting leak checks\u003c\/li\u003e\n\u003cli\u003eAutomotive A\/C diagnostics\u003c\/li\u003e\n\u003cli\u003eRefrigeration system commissioning\u003c\/li\u003e\n\u003cli\u003ePinpointing small ongoing losses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"compatibility\"\u003eWhat the Fieldpiece DR58 detects (and what it doesn’t)\u003c\/h2\u003e\n\n\u003cp\u003eThe DR58 detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) — it does \u003cstrong\u003enot\u003c\/strong\u003e detect combustible gases, CO or oxygen. For natural-gas or propane leaks use a combustible sniffer like the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein ET120\"\u003eKlein ET120\u003c\/a\u003e; for CO see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range. As a leak locator it shows where refrigerant escapes, not whether a space is safe — for occupied-space safety use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor. Heated-diode sensors are wear items; keep a replacement on hand.\u003c\/p\u003e\n\n\u003cp\u003eCross-shopping? This unit sits in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e hub alongside \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e, \u003ca href=\"\/products\/forensics-detectors-gas-leak-detector\" title=\"Forensics Gas Leak Detector\"\u003eForensics Gas Leak Detector\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"TopTes PT-830S\"\u003eTopTes PT-830S\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e. For other gas-detection form factors see \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\n\u003ch2 id=\"comparison\"\u003eHow the Fieldpiece DR58 compares\u003c\/h2\u003e\n\n\u003cp\u003eThe DR58 is the pro-grade pick among the refrigerant detectors we stock. The \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e uses a long-life infrared sensor at a lower price; the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e is a budget rechargeable option with selectable sensitivity.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eChoose the \u003cstrong\u003eFieldpiece DR58\u003c\/strong\u003e for pro-grade, ultra-sensitive heated-diode refrigerant detection.\u003c\/li\u003e\n\u003cli\u003ePrefer a long-life infrared sensor at lower cost? See the \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eOn a budget? The \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e is a rechargeable entry option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat refrigerants does the Fieldpiece DR58 detect?\u003c\/h3\u003e\u003cp\u003eIt detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) — CFC, HCFC, HFC and HFO types. It does not detect combustible gases or CO.\u003c\/p\u003e\n\u003ch3\u003eWhat sensor does the DR58 use?\u003c\/h3\u003e\u003cp\u003eA heated-diode sensor, valued for high sensitivity to halogenated refrigerants. Heated-diode sensors are wear items and are replaced periodically.\u003c\/p\u003e\n\u003ch3\u003eHow sensitive is the DR58?\u003c\/h3\u003e\u003cp\u003eIt is an ultra-sensitive pro-grade detector designed to find small refrigerant losses; sweep slowly and watch the backlit LCD climb toward the leak.\u003c\/p\u003e\n\u003ch3\u003eHow is it different from the Elitech ILD-200?\u003c\/h3\u003e\u003cp\u003eThe DR58 uses a heated-diode sensor and is a premium Fieldpiece tool; the \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e uses a long-life infrared sensor at a lower price.\u003c\/p\u003e\n\u003ch3\u003eCan it tell me if a space is safe to enter?\u003c\/h3\u003e\u003cp\u003eNo — it locates refrigerant leaks only. For occupied-space safety use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor.\u003c\/p\u003e\n\u003ch3\u003eDoes the DR58 detect natural gas or propane?\u003c\/h3\u003e\u003cp\u003eNo — it is refrigerant-specific. For combustibles use the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein ET120\"\u003eKlein ET120\u003c\/a\u003e or a TopTes combustible sniffer.\u003c\/p\u003e\n\u003ch3\u003eHow do I pinpoint a refrigerant leak?\u003c\/h3\u003e\u003cp\u003eMove the probe slowly along joints, fittings and coils; the display and alarm intensify as you near the leak, then peak at the source.\u003c\/p\u003e\n\u003ch3\u003eIs the heated-diode sensor replaceable?\u003c\/h3\u003e\u003cp\u003eYes — heated-diode sensors wear over time and are replaced as a consumable to keep sensitivity high. Budget for replacement sensors.\u003c\/p\u003e\n\u003ch3\u003eIs the DR58 good for automotive A\/C?\u003c\/h3\u003e\u003cp\u003eYes — it is widely used for automotive A\/C diagnostics as well as HVAC\/R service, thanks to its sensitivity and broad refrigerant coverage.\u003c\/p\u003e\n\u003ch3\u003eIs it in stock and how does it ship?\u003c\/h3\u003e\u003cp\u003eUse the Amazon buy button for current availability and delivery timing through our fulfillment partner.\u003c\/p\u003e\n\u003ch3\u003eDoes it have a numeric leak-rate readout?\u003c\/h3\u003e\u003cp\u003eIt shows leak intensity on a large backlit LCD to guide pinpointing; for certification you would confirm against your refrigerant-management procedure.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the DR58 over a budget detector?\u003c\/h3\u003e\u003cp\u003ePro-grade sensitivity and Fieldpiece reliability for daily HVAC use; budget options like the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e cost less but are less sensitive and durable.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border:1px solid #3a3a3a;border-radius:6px;padding:16px 18px;margin:22px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#f5e6d3;\"\u003eReady to order the \u003cstrong\u003eFieldpiece DR58 refrigerant leak detector\u003c\/strong\u003e? Add it to your cart above, or check the current Amazon price below. Compare it against the rest of our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e lineup before you buy.\u003c\/p\u003e\n\u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0;\"\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B097SW9VJS?tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:13px 26px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICE ON AMAZON →\u003c\/a\u003e\u003cspan style=\"font-size:0.8em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this Fieldpiece page?\u003c\/strong\u003e WC Safety is an independent industrial safety-equipment retailer serving safety managers, procurement teams and field supervisors. The specifications here are taken from the manufacturer’s published listing for Fieldpiece DR58 and framed against \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e. Disclosed: WC Safety earns Amazon affiliate commissions on outbound clicks; that does not influence the specs shown or our lineup.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eBy Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, gas detection and instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast updated:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e manufacturer product listing \u0026amp; specifications, OSHA 29 CFR 1910.146, OSHA Annotated PEL tables, ACGIH Threshold Limit Values.\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Specs verified against the manufacturer’s published data.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this page is maintained.\u003c\/strong\u003e Specifications and pricing are reviewed against the manufacturer’s current listing and re-checked whenever the lineup changes. Gas-detection guidance follows \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA PELs\u003c\/a\u003e, cross-referenced with ACGIH TLVs.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases through outbound links on this page (tag wcsafety04-20). We are not sponsored by any instrument manufacturer. This page is buyer guidance, not medical, legal or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Product\", \"@id\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector#product\", \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector — Heated Diode, Ultra-Sensitive\", \"description\": \"Fieldpiece DR58 refrigerant leak detector — heated-diode, ultra-sensitive HVAC leak sniffer with backlit LCD. Pro-grade. Order at WC Safety.\", \"sku\": \"B097SW9VJS\", \"mpn\": \"DR58\", \"image\": [\"https:\/\/wcsafety.com\/cdn\/shop\/products\/fieldpiece-dr58-refrigerant-leak-detector.jpg\"], \"brand\": {\"@type\": \"Brand\", \"name\": \"Fieldpiece\"}, \"category\": \"Gas Leak Detector\", \"isPartOf\": {\"@type\": \"CollectionPage\", \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\", \"name\": \"Gas Leak Detectors\", \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, \"isRelatedTo\": [{\"@type\": \"Product\", \"name\": \"Klein Tools ET120 Combustible Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Forensics Detectors Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT-830S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT520A Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT210S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Elitech ILD-200 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes RT-389 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector\"}], \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector\", \"priceCurrency\": \"USD\", \"price\": \"374.85\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"WC Safety\"}}}, {\"@type\": \"BreadcrumbList\", \"@id\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector#breadcrumb\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wcsafety.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Gas Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Gas Leak Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector — Heated Diode, Ultra-Sensitive\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What refrigerants does the Fieldpiece DR58 detect?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) — CFC, HCFC, HFC and HFO types. It does not detect combustible gases or CO.\"}}, {\"@type\": \"Question\", \"name\": \"What sensor does the DR58 use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A heated-diode sensor, valued for high sensitivity to halogenated refrigerants. Heated-diode sensors are wear items and are replaced periodically.\"}}, {\"@type\": \"Question\", \"name\": \"How sensitive is the DR58?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is an ultra-sensitive pro-grade detector designed to find small refrigerant losses; sweep slowly and watch the backlit LCD climb toward the leak.\"}}, {\"@type\": \"Question\", \"name\": \"How is it different from the Elitech ILD-200?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The DR58 uses a heated-diode sensor and is a premium Fieldpiece tool; the Elitech ILD-200 uses a long-life infrared sensor at a lower price.\"}}, {\"@type\": \"Question\", \"name\": \"Can it tell me if a space is safe to enter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it locates refrigerant leaks only. For occupied-space safety use a Portable Gas Detectors monitor.\"}}, {\"@type\": \"Question\", \"name\": \"Does the DR58 detect natural gas or propane?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it is refrigerant-specific. For combustibles use the Klein ET120 or a TopTes combustible sniffer.\"}}, {\"@type\": \"Question\", \"name\": \"How do I pinpoint a refrigerant leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Move the probe slowly along joints, fittings and coils; the display and alarm intensify as you near the leak, then peak at the source.\"}}, {\"@type\": \"Question\", \"name\": \"Is the heated-diode sensor replaceable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — heated-diode sensors wear over time and are replaced as a consumable to keep sensitivity high. Budget for replacement sensors.\"}}, {\"@type\": \"Question\", \"name\": \"Is the DR58 good for automotive A\/C?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it is widely used for automotive A\/C diagnostics as well as HVAC\/R service, thanks to its sensitivity and broad refrigerant coverage.\"}}, {\"@type\": \"Question\", \"name\": \"Is it in stock and how does it ship?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.\"}}, {\"@type\": \"Question\", \"name\": \"Does it have a numeric leak-rate readout?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It shows leak intensity on a large backlit LCD to guide pinpointing; for certification you would confirm against your refrigerant-management procedure.\"}}, {\"@type\": \"Question\", \"name\": \"Why choose the DR58 over a budget detector?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Pro-grade sensitivity and Fieldpiece reliability for daily HVAC use; budget options like the TopTes RT-389 cost less but are less sensitive and durable.\"}}]}, {\"@type\": \"Organization\", \"@id\": \"https:\/\/wcsafety.com\/#org\", \"name\": \"WC Safety\", \"url\": \"https:\/\/wcsafety.com\", \"logo\": \"https:\/\/wcsafety.com\/cdn\/shop\/files\/logo.png\"}, {\"@type\": \"Person\", \"@id\": \"https:\/\/wcsafety.com\/#editor\", \"name\": \"Steven Eaton\", \"jobTitle\": \"Editorial Lead\", \"worksFor\": {\"@id\": \"https:\/\/wcsafety.com\/#org\"}, \"knowsAbout\": [\"industrial gas detection\", \"atmospheric monitoring\", \"personal protective equipment\"]}, {\"@type\": \"Brand\", \"name\": \"Fieldpiece\"}]}\n\u003c\/script\u003e","brand":"Fieldpiece","offers":[{"title":"Default Title","offer_id":44266483581016,"sku":"B097SW9VJS","price":374.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/61KeMyWaU5L._AC_SL1500.jpg?v=1782122421"},{"product_id":"elitech-ild-200-refrigerant-leak-detector","title":"Elitech ILD-200 Refrigerant Leak Detector — Infrared Sensor (10-Year Life)","description":"\u003c!-- PRODUCT B07586MWM9 | tag gas-leak-detector | TODO: add matching Product Review + best-of guide links when those silo layers exist --\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:14px 18px;margin:0 0 18px 0;color:#f5e6d3;font-size:0.95em;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eEditor’s note:\u003c\/strong\u003e the Elitech ILD-200 refrigerant leak detector is one of the instruments we curate in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e buyer’s hub. Compare it with the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e below before you order.\u003c\/div\u003e\n\n\u003ch2 id=\"top\"\u003eElitech ILD-200 Refrigerant Leak Detector — Long-Life Infrared Sniffer\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eElitech ILD-200 refrigerant leak detector\u003c\/strong\u003e pairs an infrared sensor rated for a ~10-year life with broad halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) coverage — a \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"gas leak detector\"\u003egas leak detector\u003c\/a\u003e that lowers lifetime cost by avoiding the frequent sensor swaps heated-diode tools need. It pinpoints the leak; it does not measure air safety.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#bdae9d;margin:10px 0 18px 0;\"\u003eJump to: \u003ca href=\"#features\" style=\"color:#ffb74d;\"\u003eFeatures\u003c\/a\u003e · \u003ca href=\"#specs\" style=\"color:#ffb74d;\"\u003eSpecs\u003c\/a\u003e · \u003ca href=\"#compatibility\" style=\"color:#ffb74d;\"\u003eWhat it detects\u003c\/a\u003e · \u003ca href=\"#comparison\" style=\"color:#ffb74d;\"\u003eComparison\u003c\/a\u003e · \u003ca href=\"#faq\" style=\"color:#ffb74d;\"\u003eFAQ\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Elitech ILD-200 is a refrigerant leak detector with a long-life infrared (NDIR) sensor that detects halogenated refrigerants for HVAC, A\/C and automotive work.\u003c\/p\u003e\n\n\u003ch3 id=\"features\"\u003eKey features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eInfrared (NDIR) sensor rated for a ~10-year life — far longer than heated-diode sensors\u003c\/li\u003e\n\u003cli\u003eDetects halogenated refrigerants for HVAC, A\/C and automotive work\u003c\/li\u003e\n\u003cli\u003eStable infrared sensing resists the drift and burnout of cheaper sensors\u003c\/li\u003e\n\u003cli\u003eAudible and visual leak indication for pinpointing\u003c\/li\u003e\n\u003cli\u003eLower lifetime cost thanks to the long-life sensor\u003c\/li\u003e\n\u003cli\u003eSolid 4.4-star track record among technicians\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#1b3a2a;border:1px solid #4caf50;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#81c784;\"\u003ePros\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eLong-life infrared sensor (~10 years)\u003c\/li\u003e\n\u003cli\u003eLower lifetime sensor cost\u003c\/li\u003e\n\u003cli\u003eStable, drift-resistant sensing\u003c\/li\u003e\n\u003cli\u003eBroad refrigerant coverage\u003c\/li\u003e\n\u003cli\u003eGood value vs heated-diode tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#3a1e1e;border:1px solid #ef5350;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#e57373;\"\u003eCons\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eHigher upfront cost than budget sniffers\u003c\/li\u003e\n\u003cli\u003eRefrigerants only (not combustibles\/toxics)\u003c\/li\u003e\n\u003cli\u003eNot an atmosphere safety monitor\u003c\/li\u003e\n\u003cli\u003eInfrared can be less ultra-sensitive than fresh heated-diode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 id=\"specs\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eHalogenated refrigerants (CFCs, HCFCs, HFCs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eSensor\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eInfrared (NDIR), ~10-year life\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eUse\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eHVAC, A\/C and automotive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eAlarm\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eAudible \u0026amp; visual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eProbe\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eFlexible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e~14.9 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eWhere the Elitech ILD-200 fits\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eHVAC\/R service shops doing frequent leak checks\u003c\/li\u003e\n\u003cli\u003eA\/C commissioning and repair\u003c\/li\u003e\n\u003cli\u003eAutomotive refrigerant diagnostics\u003c\/li\u003e\n\u003cli\u003eLong-term tool-crib investment\u003c\/li\u003e\n\u003cli\u003eRefrigeration maintenance programs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"compatibility\"\u003eWhat the Elitech ILD-200 detects (and what it doesn’t)\u003c\/h2\u003e\n\n\u003cp\u003eIt detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) — not combustibles, CO or oxygen. For natural-gas or propane leaks use the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein ET120\"\u003eKlein ET120\u003c\/a\u003e; for CO the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range. Its infrared sensor resists the drift and burnout of cheaper sensors, lowering lifetime cost. As a leak locator it identifies the source, not whether a space is safe — use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor for occupied-space decisions.\u003c\/p\u003e\n\n\u003cp\u003eCross-shopping? This unit sits in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e hub alongside \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e, \u003ca href=\"\/products\/forensics-detectors-gas-leak-detector\" title=\"Forensics Gas Leak Detector\"\u003eForensics Gas Leak Detector\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"TopTes PT-830S\"\u003eTopTes PT-830S\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e. For other gas-detection form factors see \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\n\u003ch2 id=\"comparison\"\u003eHow the Elitech ILD-200 compares\u003c\/h2\u003e\n\n\u003cp\u003eThe ILD-200 emphasises a long-life infrared sensor and lower lifetime cost. The \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e is a pro-grade heated-diode tool with higher peak sensitivity; the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e is a budget rechargeable option.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eChoose the \u003cstrong\u003eElitech ILD-200\u003c\/strong\u003e for a long-life infrared sensor and the lowest lifetime cost on frequent leak checks.\u003c\/li\u003e\n\u003cli\u003eWant maximum pro-grade sensitivity? See the \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eOn a tighter budget? The \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e is a rechargeable entry option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat refrigerants does the Elitech ILD-200 detect?\u003c\/h3\u003e\u003cp\u003eIt detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) for HVAC, A\/C and automotive work. It does not detect combustibles or CO.\u003c\/p\u003e\n\u003ch3\u003eWhy is the infrared sensor a big deal?\u003c\/h3\u003e\u003cp\u003eThe infrared (NDIR) sensor is rated for about a 10-year life and resists drift and burnout, so you replace sensors far less often than with heated-diode detectors — lowering lifetime cost.\u003c\/p\u003e\n\u003ch3\u003eHow does it compare to the Fieldpiece DR58?\u003c\/h3\u003e\u003cp\u003eThe \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e uses a heated-diode sensor with very high peak sensitivity but a shorter sensor life; the ILD-200 trades a little sensitivity for a long-life infrared sensor and lower running cost.\u003c\/p\u003e\n\u003ch3\u003eCan it tell me if a space is safe to enter?\u003c\/h3\u003e\u003cp\u003eNo — it locates refrigerant leaks only. For occupied-space safety use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor.\u003c\/p\u003e\n\u003ch3\u003eDoes it detect natural gas or propane?\u003c\/h3\u003e\u003cp\u003eNo — it is refrigerant-specific. For combustibles use the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein ET120\"\u003eKlein ET120\u003c\/a\u003e or a TopTes combustible sniffer.\u003c\/p\u003e\n\u003ch3\u003eHow do I pinpoint a leak?\u003c\/h3\u003e\u003cp\u003eSweep the probe slowly along joints, coils and fittings; the audible and visual indication intensifies as you near the leak.\u003c\/p\u003e\n\u003ch3\u003eIs the ILD-200 good for a busy shop?\u003c\/h3\u003e\u003cp\u003eYes — the long-life infrared sensor suits shops doing frequent leak checks, since you avoid the repeated sensor replacement of heated-diode tools.\u003c\/p\u003e\n\u003ch3\u003eDoes it work on automotive A\/C?\u003c\/h3\u003e\u003cp\u003eYes — it is used for automotive A\/C diagnostics as well as HVAC\/R service.\u003c\/p\u003e\n\u003ch3\u003eDoes the sensor need replacing?\u003c\/h3\u003e\u003cp\u003eFar less often than heated-diode sensors — the infrared element is rated for roughly a decade of service, which is its main advantage.\u003c\/p\u003e\n\u003ch3\u003eIs it in stock and how does it ship?\u003c\/h3\u003e\u003cp\u003eUse the Amazon buy button for current availability and delivery timing through our fulfillment partner.\u003c\/p\u003e\n\u003ch3\u003eIs it sensitive enough for small leaks?\u003c\/h3\u003e\u003cp\u003eYes for typical HVAC\/R service. For the highest peak sensitivity on very small losses, the heated-diode \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e is the step up.\u003c\/p\u003e\n\u003ch3\u003eWhy choose it over a budget detector?\u003c\/h3\u003e\u003cp\u003eLower lifetime cost and stable readings; budget units like the \u003ca href=\"\/products\/toptes-rt-389-refrigerant-leak-detector\" title=\"TopTes RT-389\"\u003eTopTes RT-389\u003c\/a\u003e cost less upfront but use shorter-life sensors.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border:1px solid #3a3a3a;border-radius:6px;padding:16px 18px;margin:22px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#f5e6d3;\"\u003eReady to order the \u003cstrong\u003eElitech ILD-200 refrigerant leak detector\u003c\/strong\u003e? Add it to your cart above, or check the current Amazon price below. Compare it against the rest of our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e lineup before you buy.\u003c\/p\u003e\n\u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0;\"\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B07586MWM9?tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:13px 26px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICE ON AMAZON →\u003c\/a\u003e\u003cspan style=\"font-size:0.8em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this Elitech page?\u003c\/strong\u003e WC Safety is an independent industrial safety-equipment retailer serving safety managers, procurement teams and field supervisors. The specifications here are taken from the manufacturer’s published listing for Elitech ILD-200 and framed against \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e. Disclosed: WC Safety earns Amazon affiliate commissions on outbound clicks; that does not influence the specs shown or our lineup.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eBy Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, gas detection and instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast updated:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e manufacturer product listing \u0026amp; specifications, OSHA 29 CFR 1910.146, OSHA Annotated PEL tables, ACGIH Threshold Limit Values.\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Specs verified against the manufacturer’s published data.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this page is maintained.\u003c\/strong\u003e Specifications and pricing are reviewed against the manufacturer’s current listing and re-checked whenever the lineup changes. Gas-detection guidance follows \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA PELs\u003c\/a\u003e, cross-referenced with ACGIH TLVs.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases through outbound links on this page (tag wcsafety04-20). We are not sponsored by any instrument manufacturer. This page is buyer guidance, not medical, legal or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Product\", \"@id\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector#product\", \"name\": \"Elitech ILD-200 Refrigerant Leak Detector — Infrared Sensor (10-Year Life)\", \"description\": \"Elitech ILD-200 refrigerant leak detector — infrared sensor with 10-year life, halogen\/freon HVAC sniffer for A\/C and automotive. Order at WC Safety.\", \"sku\": \"B07586MWM9\", \"mpn\": \"ILD-200\", \"image\": [\"https:\/\/wcsafety.com\/cdn\/shop\/products\/elitech-ild-200-refrigerant-leak-detector.jpg\"], \"brand\": {\"@type\": \"Brand\", \"name\": \"Elitech\"}, \"category\": \"Gas Leak Detector\", \"isPartOf\": {\"@type\": \"CollectionPage\", \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\", \"name\": \"Gas Leak Detectors\", \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, \"isRelatedTo\": [{\"@type\": \"Product\", \"name\": \"Klein Tools ET120 Combustible Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Forensics Detectors Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT-830S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT520A Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT210S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes RT-389 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector\"}], \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector\", \"priceCurrency\": \"USD\", \"price\": \"190.99\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"WC Safety\"}}}, {\"@type\": \"BreadcrumbList\", \"@id\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector#breadcrumb\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wcsafety.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Gas Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Gas Leak Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"Elitech ILD-200 Refrigerant Leak Detector — Infrared Sensor (10-Year Life)\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What refrigerants does the Elitech ILD-200 detect?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) for HVAC, A\/C and automotive work. It does not detect combustibles or CO.\"}}, {\"@type\": \"Question\", \"name\": \"Why is the infrared sensor a big deal?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The infrared (NDIR) sensor is rated for about a 10-year life and resists drift and burnout, so you replace sensors far less often than with heated-diode detectors — lowering lifetime cost.\"}}, {\"@type\": \"Question\", \"name\": \"How does it compare to the Fieldpiece DR58?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Fieldpiece DR58 uses a heated-diode sensor with very high peak sensitivity but a shorter sensor life; the ILD-200 trades a little sensitivity for a long-life infrared sensor and lower running cost.\"}}, {\"@type\": \"Question\", \"name\": \"Can it tell me if a space is safe to enter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it locates refrigerant leaks only. For occupied-space safety use a Portable Gas Detectors monitor.\"}}, {\"@type\": \"Question\", \"name\": \"Does it detect natural gas or propane?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it is refrigerant-specific. For combustibles use the Klein ET120 or a TopTes combustible sniffer.\"}}, {\"@type\": \"Question\", \"name\": \"How do I pinpoint a leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Sweep the probe slowly along joints, coils and fittings; the audible and visual indication intensifies as you near the leak.\"}}, {\"@type\": \"Question\", \"name\": \"Is the ILD-200 good for a busy shop?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — the long-life infrared sensor suits shops doing frequent leak checks, since you avoid the repeated sensor replacement of heated-diode tools.\"}}, {\"@type\": \"Question\", \"name\": \"Does it work on automotive A\/C?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it is used for automotive A\/C diagnostics as well as HVAC\/R service.\"}}, {\"@type\": \"Question\", \"name\": \"Does the sensor need replacing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Far less often than heated-diode sensors — the infrared element is rated for roughly a decade of service, which is its main advantage.\"}}, {\"@type\": \"Question\", \"name\": \"Is it in stock and how does it ship?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.\"}}, {\"@type\": \"Question\", \"name\": \"Is it sensitive enough for small leaks?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes for typical HVAC\/R service. For the highest peak sensitivity on very small losses, the heated-diode Fieldpiece DR58 is the step up.\"}}, {\"@type\": \"Question\", \"name\": \"Why choose it over a budget detector?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Lower lifetime cost and stable readings; budget units like the TopTes RT-389 cost less upfront but use shorter-life sensors.\"}}]}, {\"@type\": \"Organization\", \"@id\": \"https:\/\/wcsafety.com\/#org\", \"name\": \"WC Safety\", \"url\": \"https:\/\/wcsafety.com\", \"logo\": \"https:\/\/wcsafety.com\/cdn\/shop\/files\/logo.png\"}, {\"@type\": \"Person\", \"@id\": \"https:\/\/wcsafety.com\/#editor\", \"name\": \"Steven Eaton\", \"jobTitle\": \"Editorial Lead\", \"worksFor\": {\"@id\": \"https:\/\/wcsafety.com\/#org\"}, \"knowsAbout\": [\"industrial gas detection\", \"atmospheric monitoring\", \"personal protective equipment\"]}, {\"@type\": \"Brand\", \"name\": \"Elitech\"}]}\n\u003c\/script\u003e","brand":"Elitech","offers":[{"title":"Default Title","offer_id":44266483712088,"sku":"B07586MWM9","price":190.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/613dkPvMCTL._AC_SL1500.jpg?v=1782122425"},{"product_id":"toptes-rt-389-refrigerant-leak-detector","title":"TopTes RT-389 Refrigerant Leak Detector — Rechargeable, 3 Sensitivity Modes","description":"\u003c!-- PRODUCT B0DSHTX11Z | tag gas-leak-detector | TODO: add matching Product Review + best-of guide links when those silo layers exist --\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;padding:14px 18px;margin:0 0 18px 0;color:#f5e6d3;font-size:0.95em;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eEditor’s note:\u003c\/strong\u003e the TopTes RT-389 refrigerant leak detector is one of the instruments we curate in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e buyer’s hub. Compare it with the \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e below before you order.\u003c\/div\u003e\n\n\u003ch2 id=\"top\"\u003eTopTes RT-389 Refrigerant Leak Detector — Rechargeable HVAC Sniffer\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eTopTes RT-389 refrigerant leak detector\u003c\/strong\u003e is the affordable, rechargeable way into refrigerant leak detection — a \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"gas leak detector\"\u003egas leak detector\u003c\/a\u003e with three sensitivity modes and three alarm types covering halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends). It pinpoints the leak; it does not measure whether a space is safe.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#bdae9d;margin:10px 0 18px 0;\"\u003eJump to: \u003ca href=\"#features\" style=\"color:#ffb74d;\"\u003eFeatures\u003c\/a\u003e · \u003ca href=\"#specs\" style=\"color:#ffb74d;\"\u003eSpecs\u003c\/a\u003e · \u003ca href=\"#compatibility\" style=\"color:#ffb74d;\"\u003eWhat it detects\u003c\/a\u003e · \u003ca href=\"#comparison\" style=\"color:#ffb74d;\"\u003eComparison\u003c\/a\u003e · \u003ca href=\"#faq\" style=\"color:#ffb74d;\"\u003eFAQ\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe TopTes RT-389 is a rechargeable refrigerant leak detector with three sensitivity modes and three alarm types that detects CFC, HCFC, HFC, HFO and HC refrigerants.\u003c\/p\u003e\n\n\u003ch3 id=\"features\"\u003eKey features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eRechargeable refrigerant sniffer covering CFC, HCFC, HFC, HFO and HC blends\u003c\/li\u003e\n\u003cli\u003eThree selectable sensitivity modes to locate then pinpoint the leak\u003c\/li\u003e\n\u003cli\u003eThree alarm types — audible, visual and vibration\u003c\/li\u003e\n\u003cli\u003eAffordable entry into refrigerant leak detection\u003c\/li\u003e\n\u003cli\u003eRechargeable — no disposable cells to manage\u003c\/li\u003e\n\u003cli\u003eCompact, lightweight body for coil and fitting access\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#1b3a2a;border:1px solid #4caf50;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#81c784;\"\u003ePros\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eAffordable refrigerant detection\u003c\/li\u003e\n\u003cli\u003eThree sensitivity modes\u003c\/li\u003e\n\u003cli\u003eThree alarm types\u003c\/li\u003e\n\u003cli\u003eRechargeable\u003c\/li\u003e\n\u003cli\u003eBroad refrigerant coverage incl. HFOs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;min-width:240px;background:#3a1e1e;border:1px solid #ef5350;border-radius:6px;padding:14px 18px;\"\u003e\n\u003cstrong style=\"color:#e57373;\"\u003eCons\u003c\/strong\u003e\u003cul style=\"margin:8px 0 0 0;\"\u003e\n\u003cli\u003eLess sensitive\/durable than pro heated-diode or infrared tools\u003c\/li\u003e\n\u003cli\u003eRefrigerants only\u003c\/li\u003e\n\u003cli\u003eNewer model with a smaller review base\u003c\/li\u003e\n\u003cli\u003eNot an atmosphere safety monitor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 id=\"specs\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eFinds\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eRefrigerants — CFCs, HCFCs, HFCs, HFOs, HC blends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eSensitivity\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e3 selectable modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eAlarms\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e3 types (audible, visual, vibration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eRechargeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eUse\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003eHVAC, A\/C, automotive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color:#ffb74d;padding:8px 10px;border:1px solid #3a3a3a;white-space:nowrap;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"color:#e0e0e0;padding:8px 10px;border:1px solid #3a3a3a;\"\u003e~271 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eWhere the TopTes RT-389 fits\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eEntry-level HVAC\/R leak checks\u003c\/li\u003e\n\u003cli\u003eDIY and light-trade A\/C service\u003c\/li\u003e\n\u003cli\u003eAutomotive A\/C diagnostics\u003c\/li\u003e\n\u003cli\u003eBackup refrigerant sniffer\u003c\/li\u003e\n\u003cli\u003eOccasional leak-repair verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"compatibility\"\u003eWhat the TopTes RT-389 detects (and what it doesn’t)\u003c\/h2\u003e\n\n\u003cp\u003eIt detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) — not combustibles, CO or oxygen. For natural-gas or propane leaks use a combustible sniffer such as the \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e; for CO see the \u003ca href=\"\/collections\/carbon-monoxide-alarms-detectors\" title=\"Carbon Monoxide Alarms \u0026amp; Detectors\"\u003eCarbon Monoxide Alarms \u0026amp; Detectors\u003c\/a\u003e range. As a leak locator it finds the source, not atmosphere safety — use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor for occupied-space decisions. Use the three sensitivity modes to locate the area, then pinpoint the joint.\u003c\/p\u003e\n\n\u003cp\u003eCross-shopping? This unit sits in our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e hub alongside \u003ca href=\"\/products\/klein-tools-et120-gas-leak-detector\" title=\"Klein Tools ET120\"\u003eKlein Tools ET120\u003c\/a\u003e, \u003ca href=\"\/products\/forensics-detectors-gas-leak-detector\" title=\"Forensics Gas Leak Detector\"\u003eForensics Gas Leak Detector\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt-830s-gas-leak-detector\" title=\"TopTes PT-830S\"\u003eTopTes PT-830S\u003c\/a\u003e, \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e. For other gas-detection form factors see \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/personal-gas-detectors\" title=\"Personal \u0026amp; Wearable Gas Detectors\"\u003ePersonal \u0026amp; Wearable Gas Detectors\u003c\/a\u003e, \u003ca href=\"\/collections\/fixed-gas-detection-systems\" title=\"Fixed Gas Detection Systems\"\u003eFixed Gas Detection Systems\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/gas-detectors\" title=\"Gas Detectors\"\u003eGas Detectors\u003c\/a\u003e range.\u003c\/p\u003e\n\n\u003ch2 id=\"comparison\"\u003eHow the TopTes RT-389 compares\u003c\/h2\u003e\n\n\u003cp\u003eThe RT-389 is the budget rechargeable refrigerant option. For higher peak sensitivity, the \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e (heated diode) is the pro pick; the \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e offers a long-life infrared sensor for lower lifetime cost.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eChoose the \u003cstrong\u003eTopTes RT-389\u003c\/strong\u003e for affordable, rechargeable refrigerant detection with selectable sensitivity.\u003c\/li\u003e\n\u003cli\u003eStep up to the \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e for a long-life infrared sensor.\u003c\/li\u003e\n\u003cli\u003eChoose the \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e for pro-grade heated-diode sensitivity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat refrigerants does the TopTes RT-389 detect?\u003c\/h3\u003e\u003cp\u003eIt detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) — including newer HFO and HC blends. It does not detect combustibles or CO.\u003c\/p\u003e\n\u003ch3\u003eIs the RT-389 rechargeable?\u003c\/h3\u003e\u003cp\u003eYes — it uses a rechargeable battery, so there are no disposable cells to manage between service calls.\u003c\/p\u003e\n\u003ch3\u003eWhat are the three sensitivity modes for?\u003c\/h3\u003e\u003cp\u003eThey let you start on high sensitivity to find the leak area, then step down to pinpoint the exact joint without constant false triggering.\u003c\/p\u003e\n\u003ch3\u003eHow does it compare to the Fieldpiece DR58 and Elitech ILD-200?\u003c\/h3\u003e\u003cp\u003eThe RT-389 is the budget rechargeable option; the \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e is a pro heated-diode tool with higher peak sensitivity, and the \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e uses a long-life infrared sensor.\u003c\/p\u003e\n\u003ch3\u003eCan it tell me if a space is safe to enter?\u003c\/h3\u003e\u003cp\u003eNo — it locates refrigerant leaks only. For occupied-space safety use a \u003ca href=\"\/collections\/portable-gas-detectors\" title=\"Portable Gas Detectors\"\u003ePortable Gas Detectors\u003c\/a\u003e monitor.\u003c\/p\u003e\n\u003ch3\u003eDoes it detect natural gas or propane?\u003c\/h3\u003e\u003cp\u003eNo — it is refrigerant-specific. For combustibles use a sniffer like the \u003ca href=\"\/products\/toptes-pt520a-gas-leak-detector\" title=\"TopTes PT520A\"\u003eTopTes PT520A\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat alarm types does it have?\u003c\/h3\u003e\u003cp\u003eThree — audible, visual and vibration — so you get clear feedback in noisy or bright environments.\u003c\/p\u003e\n\u003ch3\u003eIs it good for automotive A\/C work?\u003c\/h3\u003e\u003cp\u003eYes — it suits automotive A\/C diagnostics as well as light HVAC\/R service, at an entry price.\u003c\/p\u003e\n\u003ch3\u003eHow do I pinpoint a leak?\u003c\/h3\u003e\u003cp\u003eSet a higher sensitivity to find the area, then lower it and sweep slowly along joints and coils to isolate the exact leak.\u003c\/p\u003e\n\u003ch3\u003eIs it in stock and how does it ship?\u003c\/h3\u003e\u003cp\u003eUse the Amazon buy button for current availability and delivery timing through our fulfillment partner.\u003c\/p\u003e\n\u003ch3\u003eIs the RT-389 sensitive enough for small leaks?\u003c\/h3\u003e\u003cp\u003eIt handles typical leaks well; for the smallest losses, the pro \u003ca href=\"\/products\/fieldpiece-dr58-refrigerant-leak-detector\" title=\"Fieldpiece DR58\"\u003eFieldpiece DR58\u003c\/a\u003e or long-life \u003ca href=\"\/products\/elitech-ild-200-refrigerant-leak-detector\" title=\"Elitech ILD-200\"\u003eElitech ILD-200\u003c\/a\u003e are more sensitive.\u003c\/p\u003e\n\u003ch3\u003eDoes the sensor need replacing?\u003c\/h3\u003e\u003cp\u003eVerify performance against a known refrigerant source periodically; budget refrigerant sensors have a shorter service life than infrared units.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border:1px solid #3a3a3a;border-radius:6px;padding:16px 18px;margin:22px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#f5e6d3;\"\u003eReady to order the \u003cstrong\u003eTopTes RT-389 refrigerant leak detector\u003c\/strong\u003e? Add it to your cart above, or check the current Amazon price below. Compare it against the rest of our \u003ca href=\"\/collections\/gas-leak-detectors\" title=\"Gas Leak Detectors\"\u003eGas Leak Detectors\u003c\/a\u003e lineup before you buy.\u003c\/p\u003e\n\u003cp style=\"display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0;\"\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B0DSHTX11Z?tag=wcsafety04-20\" rel=\"sponsored nofollow noopener\" target=\"_blank\" style=\"display:inline-block;background:#FFD814;color:#0F1111;padding:13px 26px;text-decoration:none;font-weight:bold;border-radius:4px;border:1px solid #FCD200;\"\u003eCHECK PRICE ON AMAZON →\u003c\/a\u003e\u003cspan style=\"font-size:0.8em;color:#bdae9d;\"\u003eAs an Amazon Associate, WC Safety earns from qualifying purchases.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1a2733;border:1px dashed #4fc3f7;padding:16px 20px;margin:30px 0 18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eWhy trust this TopTes page?\u003c\/strong\u003e WC Safety is an independent industrial safety-equipment retailer serving safety managers, procurement teams and field supervisors. The specifications here are taken from the manufacturer’s published listing for TopTes RT-389 and framed against \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 29 CFR 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA Permissible Exposure Limits\u003c\/a\u003e. Disclosed: WC Safety earns Amazon affiliate commissions on outbound clicks; that does not influence the specs shown or our lineup.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:18px 22px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eBy Steven Eaton, WC Safety Editorial\u003c\/strong\u003e — Industrial safety-equipment desk · specialization: atmospheric monitoring, gas detection and instrument selection.\u003cbr\u003e\n  \u003cstrong\u003eLast updated:\u003c\/strong\u003e \u003ctime datetime=\"2026-06-22\"\u003eJune 22, 2026\u003c\/time\u003e · \u003cstrong\u003eSources reviewed:\u003c\/strong\u003e manufacturer product listing \u0026amp; specifications, OSHA 29 CFR 1910.146, OSHA Annotated PEL tables, ACGIH Threshold Limit Values.\u003cbr\u003e\n  \u003cstrong\u003eEditorial standard:\u003c\/strong\u003e \u003cem\u003eZero sponsored listings. No manufacturer input. Specs verified against the manufacturer’s published data.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a2733;border-left:4px solid #4fc3f7;padding:16px 20px;margin:18px 0;color:#cfd8dc;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#4fc3f7;\"\u003eHow this page is maintained.\u003c\/strong\u003e Specifications and pricing are reviewed against the manufacturer’s current listing and re-checked whenever the lineup changes. Gas-detection guidance follows \u003ca href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.146\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA 1910.146\u003c\/a\u003e and \u003ca href=\"https:\/\/www.osha.gov\/annotated-pels\" rel=\"noopener\" target=\"_blank\" style=\"color:#4fc3f7;\"\u003eOSHA PELs\u003c\/a\u003e, cross-referenced with ACGIH TLVs.\n\u003c\/div\u003e\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:16px 20px;margin:18px 0;color:#f5e6d3;font-size:0.92em;\"\u003e\n  \u003cstrong style=\"color:#ffb74d;\"\u003eDisclosure.\u003c\/strong\u003e WC Safety participates in the Amazon Associates Program and earns commissions on qualifying purchases through outbound links on this page (tag wcsafety04-20). We are not sponsored by any instrument manufacturer. This page is buyer guidance, not medical, legal or regulatory advice — confirm gas-detection requirements for your site against the applicable OSHA standard and, for commercial monitoring programs, a Certified Industrial Hygienist (CIH).\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Product\", \"@id\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector#product\", \"name\": \"TopTes RT-389 Refrigerant Leak Detector — Rechargeable, 3 Sensitivity Modes\", \"description\": \"TopTes RT-389 refrigerant leak detector — rechargeable HVAC freon sniffer with 3 sensitivity modes for CFCs, HCFCs, HFCs and HFOs. Order at WC Safety.\", \"sku\": \"B0DSHTX11Z\", \"mpn\": \"RT-389\", \"image\": [\"https:\/\/wcsafety.com\/cdn\/shop\/products\/toptes-rt-389-refrigerant-leak-detector.jpg\"], \"brand\": {\"@type\": \"Brand\", \"name\": \"TopTes\"}, \"category\": \"Gas Leak Detector\", \"isPartOf\": {\"@type\": \"CollectionPage\", \"@id\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors#collection\", \"name\": \"Gas Leak Detectors\", \"url\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, \"isRelatedTo\": [{\"@type\": \"Product\", \"name\": \"Klein Tools ET120 Combustible Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/klein-tools-et120-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Forensics Detectors Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/forensics-detectors-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT-830S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt-830s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT520A Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt520a-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"TopTes PT210S Gas Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-pt210s-gas-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Fieldpiece DR58 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/fieldpiece-dr58-refrigerant-leak-detector\"}, {\"@type\": \"Product\", \"name\": \"Elitech ILD-200 Refrigerant Leak Detector\", \"url\": \"https:\/\/wcsafety.com\/products\/elitech-ild-200-refrigerant-leak-detector\"}], \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector\", \"priceCurrency\": \"USD\", \"price\": \"129.99\", \"availability\": \"https:\/\/schema.org\/InStock\", \"seller\": {\"@type\": \"Organization\", \"name\": \"WC Safety\"}}}, {\"@type\": \"BreadcrumbList\", \"@id\": \"https:\/\/wcsafety.com\/products\/toptes-rt-389-refrigerant-leak-detector#breadcrumb\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wcsafety.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Gas Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-detectors\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Gas Leak Detectors\", \"item\": \"https:\/\/wcsafety.com\/collections\/gas-leak-detectors\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"TopTes RT-389 Refrigerant Leak Detector — Rechargeable, 3 Sensitivity Modes\"}]}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What refrigerants does the TopTes RT-389 detect?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It detects halogenated refrigerants (CFCs, HCFCs, HFCs, HFOs and HC blends) — including newer HFO and HC blends. It does not detect combustibles or CO.\"}}, {\"@type\": \"Question\", \"name\": \"Is the RT-389 rechargeable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it uses a rechargeable battery, so there are no disposable cells to manage between service calls.\"}}, {\"@type\": \"Question\", \"name\": \"What are the three sensitivity modes for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"They let you start on high sensitivity to find the leak area, then step down to pinpoint the exact joint without constant false triggering.\"}}, {\"@type\": \"Question\", \"name\": \"How does it compare to the Fieldpiece DR58 and Elitech ILD-200?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The RT-389 is the budget rechargeable option; the Fieldpiece DR58 is a pro heated-diode tool with higher peak sensitivity, and the Elitech ILD-200 uses a long-life infrared sensor.\"}}, {\"@type\": \"Question\", \"name\": \"Can it tell me if a space is safe to enter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it locates refrigerant leaks only. For occupied-space safety use a Portable Gas Detectors monitor.\"}}, {\"@type\": \"Question\", \"name\": \"Does it detect natural gas or propane?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it is refrigerant-specific. For combustibles use a sniffer like the TopTes PT520A.\"}}, {\"@type\": \"Question\", \"name\": \"What alarm types does it have?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Three — audible, visual and vibration — so you get clear feedback in noisy or bright environments.\"}}, {\"@type\": \"Question\", \"name\": \"Is it good for automotive A\/C work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — it suits automotive A\/C diagnostics as well as light HVAC\/R service, at an entry price.\"}}, {\"@type\": \"Question\", \"name\": \"How do I pinpoint a leak?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Set a higher sensitivity to find the area, then lower it and sweep slowly along joints and coils to isolate the exact leak.\"}}, {\"@type\": \"Question\", \"name\": \"Is it in stock and how does it ship?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.\"}}, {\"@type\": \"Question\", \"name\": \"Is the RT-389 sensitive enough for small leaks?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It handles typical leaks well; for the smallest losses, the pro Fieldpiece DR58 or long-life Elitech ILD-200 are more sensitive.\"}}, {\"@type\": \"Question\", \"name\": \"Does the sensor need replacing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Verify performance against a known refrigerant source periodically; budget refrigerant sensors have a shorter service life than infrared units.\"}}]}, {\"@type\": \"Organization\", \"@id\": \"https:\/\/wcsafety.com\/#org\", \"name\": \"WC Safety\", \"url\": \"https:\/\/wcsafety.com\", \"logo\": \"https:\/\/wcsafety.com\/cdn\/shop\/files\/logo.png\"}, {\"@type\": \"Person\", \"@id\": \"https:\/\/wcsafety.com\/#editor\", \"name\": \"Steven Eaton\", \"jobTitle\": \"Editorial Lead\", \"worksFor\": {\"@id\": \"https:\/\/wcsafety.com\/#org\"}, \"knowsAbout\": [\"industrial gas detection\", \"atmospheric monitoring\", \"personal protective equipment\"]}, {\"@type\": \"Brand\", \"name\": \"TopTes\"}]}\n\u003c\/script\u003e","brand":"TopTes","offers":[{"title":"Default Title","offer_id":44266483810392,"sku":"B0DSHTX11Z","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/71vKHRiH9qL._AC_SL1500.jpg?v=1782122429"}],"url":"https:\/\/wcsafety.com\/collections\/gas-leak-detectors.oembed","provider":"WC Safety","version":"1.0","type":"link"}