JT-ZJ100-CH4 Series of combustible, explosive and toxic gas leakage detector, Using high quality gas sensor, combined with advanced electronic technology and sophisticated technology to do the production. Where there are gases and toxic gases in the family, once the concentration of natural gas, carbon monoxide, and other gases in the city reaches a preset value, ZJ100 will prompt send out the audible and visual alarm signals to remind you take effective action immediately, or start interlock, ventilate or shut off air supply, eliminate danger to avoid fire, explosion, asphyxiation, death and other malignant accidents.