WiFi Gas Detector Features: Input voltage: DC 5V (micro USB interface)Working current: 350mA Response time: 30sAlarm Sound: 85dBInstallation type: wall or celling mountingAir pressure: 86~106KpaWorking Temperature: -10C~60 CWork Humidity: 80%RH, no freezingItem Size: Approx. 10.2 * 10.2 * 3.5cm (L*W*H)Item Weight: Approx. 143g / 5ozApp: iOS/Android " Smart Life " or " TuyaSmart" APP Remote Control Smart Instruction:This gas detector used for te natural gas field,which can do the security detecting and alarming for the burning,explding,poisoning caused by naturals gas leaking and the device has the high sensitive,stable,full type gas detecting and small size features.Feature:When the device detected the thickness of the nature get to 8% LEL,device will alarn and pushthe message by app,and close the electrical valves, when the fas thickness recovery to 0%LEL, device will stop alarming and recover to normal monitoring.