[Tuya Smart Gas Detector] Tuya wireless gateway hub is an essential tool for use with smoke detector sensors and various smart products [Real-time detection of natural gas leak status] When the gas leak reaches the alarm threshold, an alarm is sounded on site and the alarm information is transmitted to the user's mobile phone at the same time [App push notification and control] Compatible with Smart Life and Tuya App, it can detect fire or smoke hazards in time and notify your smartphone in real time [Easy installation and wide application] Widely used in traditional fire protection systems, it is also a measure to prevent air leakage and is proven to be your entire house safety sensor with real-time sound and light alarm [Real-time view] Real-time view of gas concentration values ??through Tuya APP Specifications: Working temperature: -20-85℃ Working voltage: 5V Working current: 10-496ma Size: 100*100*3mm Power supply: USB 5V/1A Communication protocol: Zigbee Casing material: ABS Weight: 120g Measurement range: 0~20LEL% Concentration value exceeding LEL% will trigger an 80dB alarm: 4 - 8 LEL% Mild headache, fatigue (for reference only) 8 - 15 LEL% Headache, nausea (for reference only) 15 - 20 LEL% Dizziness, cramps, life-threatening (for reference only)