Description Smart WiFi Natural Gas Leak Detector APP Remote Monitor Wall Connect Inflammable Flammable Sensor for LPG/LNG/Coal Methane Propane Butane Gas Product features: Wifi + Bluetooth dual mode: Connect to the network faster. The connection network speed is 2 times faster than Wifi alone. (Bluetooth is only used for network signal connection, Bluetooth cannot be used alone. WIFI+Bluetooth is more stable). Reliable protection: This natural gas leak alarm sensor provides reliable protection against methane gas and other natural gas leaks. Easy Installation: With simple installation instructions, you can easily install this alarm sensor in your home or office. Loud alarm: When gas is detected, this alarm sensor sounds a loud alarm to warn you and your family of potential danger. Peace of mind: With this natural gas leak alarm sensor, you can have peace of mind knowing that you and your loved ones are protected from the dangers of gas leaks. Link: It can be connected with WIFI valve manipulator to remotely monitor fuel gas leakage and close the valve. Specifications: Working voltage: AC 85V-250V Average consumption: ≤1.5W Alarm sound: 70 dB/m Alarm density: 7% LEL ± 3% LEL (CH4) WIFI standard: 802.11b/g/n Working temperature: -10℃ ~ +50℃ Working humidity: ≤95%RH Alarm mode: mobile phone app notification push (Smart Life/Tuya Smart)