Fixed Gas Detector For Use With Building Automation Systems Burglary Alarm Panels Fire Alarm Panels 36CF90 48GT51 48GT52 Gas Detected Hydrogen Methane Propane Standards cETLus Certified Includes Manual Product Type Stand-Alone Detector Controller or Transducer Mounting Location Wall Number of Relays 2 Sensor Type Catalytic Visual Alert Type Green LED Display Type Digital Operating Temperature - Minimum -4 Degrees F Operating Temperature - Maximum 122 Degrees F