1.Smoke GAS CO detector 2.Independent alarm,easy install 3.OEM CCC ISO 4.Lowest ... 115dB sound Description:1.GAS detector,Smoke detector,CO Detector,Scarbon monoxide detector,sending wireless signal alarm independently.2.while detector density reach the limited,it ... light on, after 2-5 minutes ,the red light on, at the same time the product start to detector, when detect gas ...