The altitude shall not exceed 2000m.
The ambient air temperature is -5℃~+40℃ and the average temperature within?24h shall not exceed +35℃.
Atmospheric condition: Relative humidity of atmosphere shall not exceed 50% at?the temperature of +40℃,and higher relative humidity is allowed at lower?temperature. For example, the air humidity can reach 90% at the temperature of?+20℃. Regarding the condensation casually caused by humidity change, special?me...