·Lower Temp: Can work normally when temp from 25°C down to-41°Cin 1 hour and continue working for 72 hours, then back to 25°C in 1 hour, storage and ship temp from -55°C to 77°C.

·Heat Strike: Can work normally when temp from normal temp down to -40°C, continue for 1-2 hours, then up to 85°C from - 41°C in 5 minutes, continue for 1-2 hours, down to -41°C in 5 minutes.

·Dustproof: Can work normally in a dust enviroment which contains 1.5 KG dust of each stere, blow dust 30seconds each 15 minutes, temp 23°C-60°C, comparative temp < 30°C, air speed 1.5-1.9m/s2, blow dust thickness 11±7 g/m2.

·Waterproof: Can work normally at 1 meter below the water.

·Shockproof:Can work normally under 500HZ-2000HZ shake frequency, under acceleration 116.6m/s2.