40/40C-M

Superior longest distance detection of hydrocarbon-based fuel and gas fires at up to 300 ft. (90 m),Ultra fast detection, high speed response under 50 msec,Proven false alarm immunity,Unparalled reliability - 150,000 hours MTBF,Best in class temperature range: -76 to +185 °F (-60 to +85 °C)

3 year warranty