When the Gas&CO alarm is reporting the same time the shut-off Valve can ... , Working voltage: 6VDC4, Static current: ≤40MA5, Alarm current: ≤150MA6, Static consume: 1W7, Alarm consume 2W8, Alarm volume: ≥90dB 9, Working environmenttemperature15ºC50ºC ... gas: 1000~5000ppm, natural gas: 1000ppm~5000ppm11, Responding time: ≤30S12, Alarm output: frequent on or off signal, control exhaust fan, electrical ...