Forensics 4 Gas Pump Monitor — Datalogging, Color Display (O2, CO, H2S, LEL)

Forensics 4 Gas Pump Monitor — Transportable Continuous Monitoring

The Forensics 4 gas pump monitor is a transportable continuous monitor with a built-in pump, color graphing and datalogging — an area and transportable gas monitor you set down at the hazard to watch oxygen (O2), combustible gas (LEL), carbon monoxide (CO) and hydrogen sulfide (H2S) for the length of a job, or carry for pre-entry checks.

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The Forensics 4 Gas Pump Monitor is a transportable, NIST-calibrated continuous monitor for O2, CO, H2S and LEL with a built-in sample-draw pump, color graphing display and computer datalogging.

Key features

• Monitors oxygen (O2), combustible gas (LEL), carbon monoxide (CO) and hydrogen sulfide (H2S) continuously with a built-in sample-draw pump
• Color display with live graphing to watch trends as you monitor a zone
• On-board datalogging with computer download for records
• USA NIST-traceable calibration
• Set it down at the hazard for continuous job-site monitoring, or carry it for pre-entry checks
• Audible, visual and vibration alarms

Specifications

Where the Forensics 4 Gas Pump Monitor fits

• Placed continuous monitoring during a job
• Confined-space hole watch at the entry
• Hot-work and turnaround monitoring
• Pre-entry sampling (pump)
• Datalogged exposure records for a task

What the Forensics 4 Gas Pump Monitor detects (and what it doesn’t)

It monitors oxygen (O2), combustible gas (LEL), carbon monoxide (CO) and hydrogen sulfide (H2S) with a built-in pump and logs the data — ideal for placing at a worksite for continuous coverage during a job, or carrying for pre-entry sampling. It is a single unit, not a wireless-mesh area monitor: for a networked multi-zone perimeter (AreaRAE/Radius class), distributor sourcing is required. It does not read VOCs or specific toxics. For permanent unattended coverage use a Fixed Gas Detection Systems system; for per-worker wear a Personal & Wearable Gas Detectors clip; for a carried handheld see Portable Gas Detectors.

Note on wireless area monitors: true wireless-mesh area monitors (the AreaRAE, Industrial Scientific Radius and RAE MeshGuard class) are sold through industrial distributors, not retail. The instruments here are transportable continuous monitors you place at the hazard for the length of a job — for a networked multi-zone perimeter, contact us about distributor-sourced wireless area monitors.

Cross-shopping? This unit sits in our Area & Transportable Gas Monitors hub alongside Forensics 4 Gas Data Logger, Forensics 4 Gas Monitor + Pump. For other gas-detection form factors see Portable Gas Detectors, Personal & Wearable Gas Detectors, Fixed Gas Detection Systems, or browse the full Gas Detectors range.

Forensics transportable continuous-monitoring family compared

• Choose this 4 Gas Pump Monitor for placed continuous monitoring with color graphing and datalogging at a mid price.
• Step up to the 4 Gas Data Logger for a larger transportable unit with extended computer datalogging.
• For a lighter pre-entry-focused pump unit, the 4 Gas Monitor + Pump costs less.

Frequently asked questions

Is the Forensics 4 gas pump monitor an area monitor?

It is a transportable continuous monitor you place at a hazard for a job — an area-monitoring use. It is not a wireless-mesh networked area monitor; for that class, distributor-sourced units like AreaRAE are needed. See the Area & Transportable Gas Monitors hub note.

What gases does it monitor?

It monitors oxygen (O2), combustible gas (LEL), carbon monoxide (CO) and hydrogen sulfide (H2S) with a built-in pump. It does not read VOCs, CO2 or specific toxics like chlorine.

Does it log data?

Yes — it has on-board datalogging with computer download and a color display with live graphing, so you can record and review a job's exposure trend.

Can I use it for confined-space hole watch?

Yes — placed at the entry it provides continuous monitoring during entry, alongside the entrant's Personal & Wearable Gas Detectors clip and pre-entry testing with a Portable Gas Detectors instrument.

Does it have a pump for pre-entry sampling?

Yes — the built-in sample-draw pump lets you test a space before entry as well as monitor continuously during the job.

How is it different from the larger Data Logger model?

The 4 Gas Data Logger is a larger, higher-tier transportable unit with extended computer datalogging; this model is the lighter, lower-cost continuous monitor.

Is it NIST calibrated?

Yes — it ships with USA NIST-traceable calibration; bump-test before use and recalibrate on schedule.

Can it cover a whole perimeter?

One unit covers the zone where it sits. For a multi-zone perimeter you place several monitors or use a distributor-sourced wireless-mesh system; for permanent coverage use a Fixed Gas Detection Systems system.

What alarms does it have?

Audible, visual and vibration alarms trigger when any of the four gases exceeds its set point.

What does it not detect?

VOCs, CO2 and specific toxics. For VOC monitoring a PID is required; see the Gas Detectors hub for instrument types.

Is it in stock and how does it ship?

Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.

Does the pump need maintenance?

Yes — keep the pump path and probe clean and check flow per the instructions so samples draw correctly during continuous monitoring.