... 2.It detect combustible, poisonous and harmful gas leak TGas-1031 Ammonia Gas Alarm & Monoxide Alarm TGas-1031 Series Combustible ... , Toxic and Harmful Gas Transmitter can continuously measure the concentration of site gas ... gasCombustible vapour of liquids, including methane, LPG, coal gas and gasoline, etc., as well as poisonous and ...