Features:1. Wifi+Bluetooth-compatible Dual Mode: Faster connection to the network. Connecting to the network is three times faster than WiFi single mode, and WiFi+Bluetooth-compatible dual mode of gas leak sensor is more stable and faster.2. Large Screen LCD: Real-time display of gas concentration and equipment status to understand leakage. Automatically detects faults, and the yellow light comes on when there is a fault.3. Sound & Light & APP Remote Alarm: 90DB sound alarm and red light alarm to remind the gas concentration to reach the alarm value. When the gas concentration reaches the alarm value or above, the gas leak detector will send an audible and visual alarm signal and push it to the APP.4. Detect Temperature Change: If the set temperature value is exceeded, the home gas alarm will send an alarm. When the smart WiFi gas leak detector is offline, the app will remind the device to be offline after 30 minutes.5. USB Power Supply: USB charging does not require the purchase of a battery, and data can be updated in real time, making data more accurate. Supports detection of natural gas, biogas, and methane. Note that smoke detection is not supported. Specification:Smart home platform: TuyaCertification: NONEOrigin: Mainland ChinaModel Number: Gas DetectorInstallation method: wall mounted/ceiling mountedWorking voltage: 5VPower supply mode: Type-CAlarm volume: 90dBAlarm setting value (APP adjustment): 20ppm (default value)Wi Fi standard: IEEE 802.11b/n/g 2.4GRadio frequency: 433.92 MHzDetection gas: natural gas, LPG, biogas, CH4Application: Smart LifeNet weight: 85gGross weight: 127gProduct size: 91 * 91 * 28mm/3.6*3.6*1.1inPackage size: 105 * 100 * 29mm/4.1*3.9*1.1inIncluded:1 x Gas Leak Sensor 1 x USB cable 2 x Screw 1 x Instructions Note:1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting.2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.