RKI Instruments

RKI Instruments S2 Fixed Gas H2 Sensor/Transmitter

Usually ships in 6 - 8 weeks


The S2 series Diffusion H2 Sensor/Transmitter from RKI Instruments provide reliable, economical detection of common gas hazards. Designed specifically to work with RKI controllers such as the Beacon 110, Beacon 200, or Beacon 410. These transmitters for the H2 are explosion-proof with flame arrestors, and approved for use in hazardous areas (Class l, Div 1 Groups B, C, D). The S2 transmitters can be used either indoors or outdoors. The flame arrestors for the explosion-proof versions utilize a patented coating which make them water repellent. Splash guards are also available for use in very wet environments.

Applications: Petrochemical Plants, Refineries, Gas Plants, Offshore Drilling Platforms, Water & wastewater treatment plants, Pulp & paper mills,Gas, telephone, & electric utilities, Parking garages, Manufacturing facilities, Steel, Automotive, and Chemical storage buildings.

Key Features:

  • Metal oxide semiconductor-type plug-in sensors
  • Compatible with Beacon 110, Beacon 200, and Beacon 410
  • Indoor/outdoor
  • Water repellent patented sensor coating (except toxics)
  • Long life sensors (5 + years typical)
  • Explosion proof construction


Measuring Range:0-500 ppm, 0-1000 ppm, or 0-2000 ppm

Lower Detectable Limit (LDL): 2% volume

Response Time: 45 seconds

Life Expectancy: 5+ years with normal service

Part Numbers:
65-2443-500 - 0-500 ppm
65-2443-1000 - 0-1000 ppm
65-2443-2000 - 0-2000 ppm

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Additional Information

Country of Origin:
United States
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