Low current extends the useful life of your battery. Fully operational from 6 to 16 volts DC - gives you a detector that will continually operate until the battery is almost dead. Double check circuit - eliminates false alarms caused by a brief exposure to perfumes, hair spray, cleaners, aerosol sprays, and other flammable gases. An eight second double check circuit is used to verify a gas leak from a momentary gas exposure. Mute circuit - temporarily silences the detector for two minutes. For added safety the red LED will continue to flash and the alarm will beep every 30 seconds until the gas has cleared. Re-alarm during Mute cycle when gas reenters the area during the mute cycle, the detector will sound the alarm 4 times and the red LED will signal an alarm condition. Safe-t-lock malfunction circuit - the detector flashes an alternating red/green visual signal and sounds once very 15 seconds. A malfunction cannot be overridden by the mute switch. This operational feature gives an immediate identification of the type of alarm to assist you, as well as service and response personnel. Test circuit - simply press the test switch and a complete diagnostic test is performed in an instant. No gas required. UL listed - for use in RV's, homes, and unconditioned areas such as garages, boiler/furnace rooms, warehouses, barns, offices, etc. Operational temp. -31 degrees F to +156 degrees F. 12 volt hard wire model.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov