0: No protection
1: Prevent the intrusion of large solids
2: Prevent the intrusion of medium-sized solids
3: Prevent small solids from entering and intruding
4: Prevent solid objects larger than 1mm from entering
5: Prevent the accumulation of harmful dust
6: Completely prevent dust from entering
The second X means: Waterproof level
1: There is no effect when water drops drip into the shell
2: When the shell is tilted to 15 degrees, the water droplets will not affect the shell
3: Water or rain has no effect from the 60 degree corner to the shell
4: The liquid is splashed into the shell from any direction without any harm
5: Rinse with water without any harm
6: Can be used in the cabin environment
7: Can withstand water immersion in a short time (1m)
8: Long time immersion in water under certain pressure