... Wheatstone bridge structure for combustible gas. Liner output signal for gas concentration. catalytic gas sensor MC108 for Methane,Butane,Hydrogen 1 ... industrial field such as natural gas, LPG, coal gas, alkane ect combustible gas, and gasoline, Alcohol, ... benzene ect organic solvent;Combustible gas leaking alarm or detectors;Gas concentration meter 4. Specification TypeMC108SeriesCatalyticStandard ...