電源 2 D-size (1.5V) alkaline batteries, included (use Duracell® MN1300 to maintain intrinsically safe approval) 基本裝置包括 Sensor, two D size alkaline batteries, hard plastic carrying case 靈敏度 5 ppm: methane, R290 (propane), R600 (isobutane), hydrogen1 ppm: gasoline 認證 Intrinsically Safe for Class I, Division I, Groups A-D, T4 and II 3G Ex nA nL IIC T4 X as per MET Laboratories Listing #E112145