The sensor’s rugged housing is protected by a sintered, stainless-steel flame arrestor, and can be installed in Class I, Division 1 locations. The gas sensor can be installed as a stand-alone sensor or combined with a display for local indication and is third-party tested to ISA-92.0.01. Onboard humidity and temperature sensors are designed to ensure accurate and repeatable readings.Detector Electronics Corp.ntmos.det-tronics.com952.941.5665