RKI Instruments

RKI Instruments GasWatch 3 H2S Single Gas Monitor 73-0022

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RKI Instruments GasWatch 3 H2S Single Gas Monitor is one of 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 360 degree rotation alligator clip. A small, field-replaceable, coin-type lithium-ion battery gives the GasWatch 3 H2S up to 4,000 hours of continuous operation.

Applications: Refineries, Petrochemical facilities, Sewage treatment plants, Fire departments, Chemical plants, Tunnels, Mines, Hazardous waste sites

Key Features:

  • 3 years for H2S sensor
  • Up to 4,000 hours of operation
  • Light and compact "watch type" design
  • Comfortably wear in your breathing zone
  • Available with watch band or alligator clip
  • Automatic backlight during alarm
  • Sturdy IP-66/68 rated design
  • Water, dust and radio frequency (RF) resistant
  • Non-compliance indicator
  • Detection Range:0 ~ 30 ppm (0.1), 30 ~ 100 ppm (1)
  • Service Range: 100 ~ 200 ppm (1)

Specification Sheet: 

Quick Reference Guide: 

H2S GasWatch 3 Manual: 

Set Program Manual: 

Datalogging Program Manual: 

Part Numbers:
73-0022 GasWatch 3, H2S, Galvanic sensor, with alligator clip
73-0022-01 GasWatch 3, H2S, Galvanic sensor, with wrist band

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Additional Information

Gas Type:
Hydrogen Sulfide (H2S)
Country of Origin:
0.10 LBS
2.50 (in)
1.60 (in)
0.86 (in)
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