... : 0~100% LEL 3)accuracy:5% Combustible Gas Detector Model: SPD202/ExShenzhen Sanpo Instrument Co.,Ltd (A1 ... status)<15mA (non-measuring status) 1. IntroductionSPD202 combustible gas detector can be used in hazardous areas indoors and outdoors, ... as chemical, petroleum, metallurgy, oil depot, LPG (Liquefied Petroleum Gas) station , pharmaceutical, gas transmission and distribution, etc. to detect the ...