1) burglar wireless Lpg gas sensor detector gas leakage sensor work with alarm ... 2) auto reset 3) factory direct price burglar wireless Lpg gas sensor detector gas leakage sensor work with alarm/valve ... The gas detector is used to detect LPG, coal gas and natural gas, 1. With the most ... processing technology, the gas alarm can be used to detect LPG, natural gas or coal gas.2. Also it has ...