Combustible Gas Detector With Solenoid Valve, Packaging Type : White

UH Combustible Gas Detector with solenoid valve is a safety alarm device system to prevention of gas leaking explosion. it widely used to detect natural gases, LPG( combustible gases and flammable gases ) in home, hotels, restaurants, hospitals, office buildings, places for dinning, bathroom and kitchen and so on.
How does the UH smart home gas alarm with shutoff valve work? 
Firstly electrify the natural gas detector device, after the green LED light long bright, press the test button, red and yellow light flash alternatively with "wu wu wu"' alarm sound. When natural gases or LPG is reached detector's alarm lower limit, the detector live sound and light alarm, red light flashing with 110dB volume, and emit a pulse current to shutoff valve, the DN20 valve cut off gas source immediately. It is family's best safety helper to pre-alarm.
Features: 
* MUC chip control, high safety 
* Thermo-sensitive sensor, high accuracy and stability 
* Flame retardant fire prevention shell 
* Live sound and light alarm 
* Self-check and Malfunction indicator function 
* Mute function and simulation test function 
* Delay alarm function to prevention of false positive