Dehler
Ambient temperature: -5℃ ~ +40℃, and the average temperature within 24h does not exceed +36℃.
Altitude: No more than 2000m.
Relative humidity: No more than 50% when the ambient air humidity is +40℃; At lower humidity there can be a higher relative humidity (e.g. 90% at +20°C), allowing for moderate condensation taking into account the change in temperature.
Installation: The inclination between the vertical plane and the device should not exceed 5°. The device should be installed in a place without severe vibration, impact, or corrosion.