Rated voltage:DC5V     Power supply interface:Micro-USB     Working current: less than 200mA     Applicable gas:Methane (natural gas), liquefied petroleum gas     Alarm mode:Real voice reminder     TFT color display:Perpetual calendar, real-time ambient temperature and combustible gas display     Working environment Temperature:-10~55℃     Humidity: less than 95%RH without condensation     Sampling method:Natural diffusion     Range:0~100%LEL     Alarm setting concentration value:6%LEL     Alarm concentration error: +/- 3%LEL     Response time: less than or equal to 30 seconds,Automatic recovery of normal environment     High temperature alarm setting value: 57℃     Alarm volume: greater or equal to 70dB (1 meter directly in front)     Alarm mode:Sound and light alarm, human voice prompt, mobile phone alarm push     Warm-up time:180 seconds     Service life 5years (under normal use environmental conditions)     Wi-Fi:2.4GHz     Installation method:Wall-mounted     Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on / Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.     Colour: White     Material: ABS     Size: 86 x 86 x 24.5mm          Package Contents:     1 x Tuya wifi smart gas Alarm     1 x usb cable     1 x power plug          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.