... burglar wireless Lpg gas sensor detector gas leakage sensor work with alarm/valve 2) auto reset 3) factory ... wireless Lpg gas sensor detector gas leakage sensor work with alarm/valve The gas detector is used ... LPG, coal gas and natural gas, 1. With the most advanced MCU and central processing technology, ... of the gas alarm, which enable it can work with auto shut off solenoid valve (12v), exhaust fan ...