The Safe-T-Alert Classic 30 Series Propane/LP Gas Detector is a great detector for both propane gas and liquid propane. Ideal for Class A motorhomes, Class B van campers, Class C mini-motor homes, travel trailers, fifth wheels, truck, and folding campers. Recommended replacement for most CCI Controls LP Gas Leak Detectors. No additional modifications needed. Rapid recovery sensor resets when silenced or reactivates alarm if dangerous levels of propane or CO remain. Alarm mute button silences alarm while RV is ventilated. 12V power indicates no missing or dead batteries to replace. Self-cleaning sensor. Low voltage power warning at 7 volts. Surface-mounted on the wall. Alarms at Alarms up to 85 dB. Power Supply and Current Draw: 108 mA at 12 VDC. Operational Range: 12-Volts +/-15%. Operational Temperature: -40° F to +158° F. Color: White. Dimensions: 6-3/8" L x 1" W. Weight: 0.6 lbs. Meets RVIA/NFPA requirements and Listed to UL 1484 RV. Limited 1-Year Manufacturer Warranty. Made in USA