The Gas Leakage Detector can be used for detecting combustible gas, e.g. natural gas, LPG, petrol, gasoline and etc. When the leaking gas accumulates up to the limit value (10% LEL), the detector can sense it with LED flashing and built-in siren sounding, at the same time, send out signal to the control panel and/or activate the Solenoid Valve, so the Valve can cut off the gas source within 1 second. The detector is suitable for the safety of car, residential house, villas, hotels, markets, boarding house and etc. Advanced semiconductor sensor is adopted to ensure high, stability and long life. It is convenient for mounting. Main features of the Gas Leakage Detector: 1) Integrated type, detecting Natural Gas / LPG / liquefied petroleum gas/ Propane and etc. 2) Auto reset after alarm 3) MCU process 4) Sensor with high stability 5) Auto check and LED indicator for malfunction 6) SMT adopted 7) Solenoid Valve appended 8) Support Exhaust Fan