The Open Path Combustible system detects hydrocarbon gases by analyzing the absorption of radiation caused by gases in the atmosphere and comparing it to background atmospheric absorption. This is accomplished between a pair of units: a Flash Source and a Detector that can monitor a distance of up to 200 meters.

Open Path Combustible Gas Detectors are robustly designed and can handle the toughest environments: 316L stainless steel housings that meet IP66/IP68 and NEMA 250 6P egress standards; circuit boards epoxy coated for protection; MIL-C-810C testing for humidity, salt, fog, vibration, mechanical shock and temperature extremes; and SIL-2 approval per IEC61508 is a final statement in reliability.




  • Certification Description
    ATEXA product regulation which ensures the safety of equipment intended for use in potentially explosive atmospheres in the European Union.
  • Canadian Approvals: CSA (c), UL (c), FMc, ETLcA product regulation which ensures the safety of equipment intended for use in potentially explosive atmospheres in Canada.
  • CEindicates that a product has been assessed by the manufacturer and deemed to meet EU safety, health and environmental protection requirements.
  • EACGost R and EAC certifications are mandatory in order to have access at all to the Russian market and the markets of the five EAC members
  • IECExThe IECEx System is an international system for the safety of equipment installed in a potentially explosive atmosphere.
  • SILSafety Integrity Level (SIL) defined as a relative level of risk-reduction provided by a safety function, or to specify a target level of risk reduction
  • US Approvals: CSA (us), FM (us), ETL (us), UL (us)A product regulation which ensures the safety of equipment intended for use in potentially explosive atmospheres in the United States