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GasWatch 3 Hydrogen Sulfide Single Gas Detector with wrist band

The GasWatch 3 Single Gas Detector is the world’s smallest and lightest single-gas monitor.


SKU 73-0022-01 Categories , Tag



The GasWatch 3 Hydrogen Sulfide Single Gas Detector is the world’s smallest and lightest single-gas monitor. Weighing just 1.6 ounces, its compact form affords great comfort and flexibility in how you choose to wear it. It can be worn on your wrist as a watch, or clipped into your breathing zone on your lapel, hard hat or other safety equipment with its alligator clip.

A small, field-replaceable, coin-type lithium-ion battery gives the GasWatch 3 over 4,000 hours of continuous operation.

The great battery life coupled with a 3-year warranty* gives the GasWatch 3 tremendous value and a low cost of ownership.



Tags: H2S Hydrogen Sulfide Gas Detector, Single Gas Detector

Additional information

Weight .5 lbs


  • 3 year warranty
  • Up to 4,000 hours of operation
  • Light and compact “watch type” design
  • Comfortably wear in your breathing zone
  • Available with a watch band or alligator clip
  • Automatic backlight during alarm
  • Sturdy IP-66/68 rated design
  • Water, dust and radio frequency resistant
  • Non-compliance indicator


Sample Method Diffusion
Operating Time Hydrogen Sulfide & Carbon Monoxide: 4,000 hours
Alarm Gas Alarm: 1st, 2nd, 3rd (user adjustable), OVER alarm, STEL and TWA
Trouble Alarm: Sensor connection, low battery, circuit failure and calibration range error
Battery CR2450 coin-type lithium-ion battery
Display Digital LCD, gas name & concentration, auto backlighting during alarm, operation icon, battery icon
Alarm Flashing LEDs
Functions Datalogger, vibration, STEL alarm, TWA alarm, quick calibration, peak value display, temperature display
Enclosure IP-66/68
Temperature -20 to 50°C
Humidity 10% to 90% relative humidity (non-condensing)
Intrinsic Safety ATEX, IECEx, CSA
Size 2.5″ x 1.6″ x .86″
Weight 1.6 ounces
Warranty 3 Year warranty

Sensor Specifications


Hydrogen Sulfide (H2S)
0 – 200 ppm
5.0 ppm / 30 ppm


GasWatch 3 Hydrogen Sulfide Single Gas Monitor Datasheet

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