The international industrial production waterproof level specification IPX and the JIS level of the American manufacturing ground waterproof specification are the same, which are divided into 9 levels of 0-8 and recorded here.
Level 0 unprotected;
Level 1 can also eliminate the harmful effects of small water drops falling vertically;
Level 2: it has safety protection function for water drops falling within 15 degrees from the vertical angle;
Level 3 can also eliminate the harmful effects of spray water droplets with a vertical angle of 60 degrees;
Level 4 can also remove the harmful effects of splashed water drops from other directions;
Level 5 can also eliminate the harmful consequences to the water volume ejected from the nozzles in all directions;
Level 6 can also eliminate the harmful and adverse effects on the super strong water discharge of nozzles in all directions;
The top of level 7 is 0.15-1 m away from the water surface, lasting for 30 minutes. The service performance is not affected and there is no water leakage;
The top of Grade 8 is 1.5-30m away from the water surface, lasting for 30 minutes. The service performance is not adversely affected and there is no water leakage;
In the future, you should pay attention to buying three proofing mobile phones. Only those with level 7 and 8 are really waterproof; Level 6 can also be called rain proof. Mobile phones and GPS for outdoor activities should reach this level.
