famous brand high quality low price Product Name: Combustible Gas DetectorProduct ID: SQL-EX-11, diffusion (which can increase pump ... touch buttons7, highlight the Backlight8, precision: ≤ ± 5%1. Detection of gas: flammable gas2, detection principle: Electrochemical methods3, detection range: 0 ~ 100 ... mining, metallurgy security ring, Chemical Services and other occasions Combustible Gas Detector