Research-based buying guides that compare the leading options by documented specifications, real use cases and value.
Both use heated diode sensors. The Elitech states maximum sensitivity of 0.1 oz per year with three sensitivity levels and a TFT screen; the Fieldpiece states below 0.03 oz per year, IP54 and a 300 hour sensor life.
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Both monitor oxygen, carbon monoxide, hydrogen sulfide and combustibles. The Guard-101 states a 14 hour battery and alarm record storage; the Forensics unit states NIST calibration and zero and span calibration options.
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The ET120 finds combustible gas leaks from 50 to 10,000 ppm. The Guard-101 is a wearable four gas monitor for H2S, CO, LEL and oxygen with a stated 14 hour battery.
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The CD100A states an 18 inch gooseneck with a tip light and seven detectable gases. The PT199 is a compact unit stating a 0.5 second alarm, a red high-level screen and included batteries.
Read Guide→The ET120 states 50 to 10,000 ppm with high and low modes and an 85 dB alarm. The PT199 states an alarm within 0.5 seconds, a screen that turns red at high concentration and batteries in the box.
Read Guide→The CD100A lists seven gases and an 18 inch gooseneck with a tip light. The ET120 states 50 to 10,000 ppm on methane with two sensitivity modes and an 85 dB alarm.
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The DR82 states an infrared sensor with a 10 year life, IP54 construction and leaks below 0.03 oz per year. The D-TEK 3 states four sensitivity levels, auto and manual zero and explicit A2L coverage.
Read Guide→The D-TEK 3 states four sensitivity settings, automatic and manual zero, and coverage of all CFCs, HCFCs, HFCs, HFOs and blends including A2Ls. The DR58 states a heated diode finding leaks below 0.03 oz per year.
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Both state sensitivity below 0.03 oz per year and IP54 construction. The DR58 uses a heated diode with a stated 300 hour sensor life; the DR82 uses infrared with a stated 10 year sensor life.
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The MMD4E is a pin meter with tones, a hold button and a calibration cap. The MO265 does pinless scanning and contact measurement with a remote probe and a tri-colour bargraph.
Read Guide→The MMD4E is a pin meter with 8 mm stainless pins, audible tones and a calibration check built into the cap. The ET140 is pinless to three quarters of an inch and leaves no mark.
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The Klein ET140 is pinless only, stating detection up to three quarters of an inch using an electromagnetic field. The Extech MO265 adds a remote pin probe and a tri-colour bargraph.
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