Use environment:
Environmental temperature: 0℃～+40℃;
Relative humidity: <90% (+25℃);
Atmospheric pressure: 80kPa～106 kPa;
Environmental noise: not more than 90dB
Mechanical environment: where there is no significant vibration and shock. Do not use it in a strong electromagnetic field environment. It can be used in coal mines that contain methane and coal dust in an explosive environment, but it must not be used in places containing corrosive gases.

Storage and transportation environment:
Temperature: -40℃～＋60℃
Average relative humidity: <90% (+25℃)
Mechanical environment: vibration acceleration 20m/s2, impact acceleration 500m/s2