This product is designed to detect explosive gases (natural gas LPG) in the air f houses, offices similar places. In case of gas leak, it alarms sound with voice prompt, pushes text notification to your mobile drives the valve/ mainpulat to turn gas leak source off.Features:The gas leak detect is especially designed to detect explosive gases (natural gas LPG) in the air f houses, offices me places.Large TFT col LCD screen cleary displays date, week, time, gas concentration value, temperature, etc. Easy to read even in the dark.Suppts 2.4GHz wifi, compatible with and39;Smart Lifeand39; APP, itand39;s easy f you to check control via mobile APP anytime anywhere, making it me convenient to use.In case of gas leak, it alarms sound with voice prompt, pushes text notification to your mobile drives the valve/ mainpulat to turn gas leak source off.Itand39;s also a fire alarm device with the built-in heat sens designed to respond when the convected thermal energy of a fire increases the temperature. Heat alarm value: 57.Specifications:Type: USB Type/ US Plug/ EU Plug/ UK Plug (Optional)Shell Col: White and BlackMaterial: Flame Retardant PlasticConsumption: 200mADetecting Gas: Natural Gas (CH4), LPGWking Environment: Temperature -10-55; Humidity95%RH (Non-condensing)Sample: DiffusionRange: 0-LELAlarm Setting Value: 6%LELTolerance: 3%LELResponse Time: 30sHeat Alarm Value: 57Alarm Volume70dBAlarm with: Indicat, sound, voice prompt APP notification pushValve/ Mainpulat Drive Output: 12V/ 300mA f 15sWarm-up Time: 180sWi-Fi: 2.4GHzAPP: Compatible with Smart LifeItem Size: 86 24.5mm / 3.39 0.96in (Dia. H)Item Weight: 78g / 2.75ozPackage Size: 9 9 5cm / 3.54 3.54 1.97inPackage Weight: 133g / 4.68oz (USB Type); 157g / 5.52oz (Power Adapter Type)Package List:1 Wifi Gas Leak Detect1 USB Cable2 Screw2 Hose1 Wiring1 User Manual (English)