Gas Leakage Detector/Gas sensor alarm

Product Description :Power supply: AC 220V; AC230-240V; DC9V battery Working frequency: 315MHz/433MHz Alarm limit: Coal gas2000ppm more or less 30%; Solid petroleum5000 ppm more or less 30% LPG; Natural gas2000ppm more or less 30% Working current: Normal 150mA; Alarm200mA Working temperature: -10 ~ 50 Degree Insulation: Insulation resistance>50 Omega; Electric strength>1500V AC Relative humidity: < 90rh Size: 145x100x 42mm

Gas Leakage Detector