HOT!Home use gas detector with shut off valve 1,ISO9001&CE 2,In the ... the gas valve 3,Alarm,security HOT!Home use gas detector with shut off valve Features:Adopts nanotechnology sensor with self ... 10 feetPower input220V,10WOperating EnvironmentTemperature:-10°C~+50°C; relative humidity:<97%Emitting power12±1dBEmitting frequency433MHz/868MHzEmitting distance100mResponse time<20STypes of ...