X-4 is a multi 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 continuously 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.