1. Altitude: no more than 2000m;
2. Ambient temperature: -5°C~+40°C, the average value of 24h does not exceed 35°C. If it exceeds this range, please consult with the manufacturer;
3. Relative humidity: no more than 50% when the maximum temperature is +40℃, and the maximum relative humidity is 90% (20℃). Special measures must be taken for condensation on the product due to temperature changes;
4. Pollution level: Level 2;