1 Temperature : -5℃~+40℃, the average temperature should lower than +35℃ within 24 hours;
2 Height above Sea Level: Lower than 2000m;
3 Atmosphere Condition: At the highest temperature of +40℃, relative humidity not above than 50%. At the lower temperature relative humidity is permitted;
4 Pollution Grade: 3;
5 Installation Type:Ⅱ;
6 Hole Dimension of Installation: PlateΦ22.3;
7 Install in the safe medium, which cannot rot metal and insulator;
8 Avoidance of notable shake, wallop and thunder storm.