Power supply: AC 220V; AC230-240V ; DC9V battery
Working frequency: 315MHz/433MHz
Alarm limit: Coal gas2000ppm?0%; Solid petroleum5000 ppm?0% （ LPG ） ; Natural gas2000ppm?0%
Working current: Normal 150mA; Alarm200mA
Working temperature: -10 ~ 50℃
Insulation: Insulation resistance>50 Ω; Electric strength>1500V AC
Relative humidity: < 90rh
Size: 145x100x 42mm
N.W.: 235g