GDS-IR High Performance Infrared Gas Sensor for Hydrocarbons and CO2

  • CSA Certified for Class I, Div 1 explosion-proof installations
  • Straight line optical path eliminates need for mirrors
  • Suitable for use in SIL-2 rated safety systems
  • High speed response for critical applications (T50 less than 3 sec)
  • Industry standard 4-20mA current loop calibrated output
  • Rugged stainless steel construction with no moving parts
  • Heated optical chamber maintains accuracy in cold conditions
  • Operates in constant hydrocarbon and anaerobic atmosphere
  • Ten discrete fault indication values for all failure states
  • Routine span calibration not required for normal operation
  • Random power-up delay reduces initial load on power supply
  • Multiple gas calibration curves for %LEL and % by volume
  • CSA Certified C22.2 No. 152-M1984 Performance Tested


The GDS-IR Infrared Gas Sensor uses proven, reliable infrared sensing technology to detect dangerous levels of carbon dioxide or explosive levels of methane, propane and other hydrocarbons. Designed for especially harsh environments, the GDS-IR is virtually maintenance-free and immune to poisoning or etching by any known gas.

The GDS-IR can be calibrated to read a wide range of combustible hydrocarbons, including methane, propane, hexane, pentane, ethanol, Jet-A, isobutene, propylene and isopropyl alcohol, as well as carbon dioxide to 5% by volume.

The GDS-IR sensor is CSA certified for use in Class 1 Division 1 explosive environments, is CSA performance tested and includes a five year operational warranty. The GDS-IR is also suitable for use in SIL-2 safety systems.

The GDS-IR is manufactured in the USA Applications include refineries, onshore and offshore drilling platforms, fuel loading docks, biogas processing, breweries, wastewater treatment facilities and natural gas storage and distribution.