SAFE-T-ALERT 30 SERIES CLASSIC LP GAS DETECTORS Intel check Circuit eliminates false alarms caused from momentary exposure to LP Gas aerosol cleaners hair spray and other flammable gases. Long life self cleaning sensor. Micro circuit technology saves precious battery power. 46 milli amp (.046 amp.) current draw. Meets RV standard ANSI A119.2 as required by the RVIA. Loud 85dB alarm alerts you to the presence of LP Gas and Natural Gas. Test/Reset button can be used to temporarily silence alarm during ventilation. Tests all detector functions with one touch. No dangerous gas required. Alarm is fully operational during mute cycle and will re-alarm if hazardous conditions recur. Built for the extreme RV environment. Power 12 VDC operational range 8-16 volts. Operational temperature range Degree Fahrenheit UL listed for recreational vehicles and unconditioned areas to detect LP gas propane and natural gas. Recess Case 6.5 x 2.875 x 1.25 Brown.The Safe T Alert 30 Series Propane LP gas Alarm is designed for the rugged RV environment and is ideal for class A motor homes class B van campers class c mini-motor homes travel trailers fifth wheels trucks and folding campers. It features advanced technology with an Alarm Mute button that silences the alarm when the RV is ventilated and rapid recovery sensor that resets when silenced or reactivates if dangerous levels of propane remain. Easy 12 Volt installation means there will be no missing or dead batteries to replace.