The best garage CO detectors for 2026 — scored picks for repair bays, parking and fleet garages, plus the right CO alarm for an attached home garage.
The best industrial carbon monoxide monitors of 2026 — workplace CO clips and 4-gas detectors ranked. (For home CO alarms, see our residential range.)
The best refrigerant leak detectors for 2026 — heated-diode, infrared and A2L-ready HVAC/R sniffers ranked by sensitivity, sensor life and value. Includes EPA 608 leak-rate rules and the R-454B/R-32 A2L transition.
The best gas leak detectors of 2026 — combustible (natural gas, propane, methane) sniffers ranked by reach, value and accuracy.
The best personal gas detectors of 2026 — clip-on single-gas and wearable 4-gas monitors ranked for per-worker exposure monitoring.
The best H2S monitors of 2026 — hydrogen sulfide clips and 4-gas detectors ranked for oil & gas, wastewater and confined space.
