Width x Depth x Height: 70 x 52 x 131mm Operating temperature: -20 to 50°C Subject gas: Oxygen (O2), flammable gas (LEL), carbon monoxide (CO), hydrogen sulfide (H2S) Measurement range: Oxygen 0 to 30.0% Combustible gas 0 to 100% LEL Carbon monoxide 0 to 1000ppm Hydrogen硫化物0至200ppm 电源(V):锂聚合物可充电电池