QGM is an united gas detector measuring four (4) major gases, which cause the most of the industrial accidents, to protect workers from the disasters caused by the Oxygen deficiency, Toxic gas poisoning and gas explosion. It measures continously four (4) gases (O2, CO, H2S and Combustible Gas (CH4)) and displays their concentrations and raises an alarm (visual, vibrating, and audible) when the risk occurs. It features the dual sensor of CO and H2S.
