... quality air-sensitive component introduction FS080E gas alarm which used high quality air-sensitive component ... methane, ,LPG and FS0802E is adapted to coal gas .technology parametertarget gas natural gas , artificial gas , LPGalarming concentration < 5 %LEL(methane, ... 25oC-oC55stress 86--106Kpacomsumption static comsumption <1.2W alarm comsumption <2wvalidity period 5 yearsworking place in roomWeight ...