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RKI S2 Non-Explosion Proof Diffusion Sensor/Transmitter

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RKI Instruments

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RKI S2 Series Non-Explosion Proof Diffusion Sensor/Transmitter are highly reliable and very cost effective for the detection of common gas hazards. The transmitters for oxygen, H2S, CO, and CO2 are non-explosion proof for non-hazardous atmospheres. The S2 transmitters can be used either indoors or outdoors and includes a junction box. All of the S2 transmitters are designed to interface with RKI controllers, or with PLC/DCS systems.

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, Chemical storage buildings

Key Features:

  • O2, H2S, CO, and CO2
  • Patented water repellent sensor coating
  • 4-20 mA output
  • Non-explosion proof construction
  • Junction box included
  • Made in the USA



Product Numbers:
65-2321RK Oxygen (O2) 0-25%
65-2330RK Hydrogen Sulfide (H2S) 0-100 ppm
65-2335RK Carbon Monoxide (CO) 0-300 ppm
65-2397RK-03 IR Carbon Dioxide (CO2) 0-5%

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