Description
| SOLIDS | WATER | ||
|---|---|---|---|
| 1 | Objects larger than 50mm (e.g., hand cannot be inserted) | 1 | Prevent water drops from entering (vertical angle) |
| 2 | Objects larger than 12.5mm (e.g., finger cannot be inserted) | 2 | Prevent water drops from entering (15° angle) |
| 3 | Objects larger than 2.5mm (e.g., thickness of 2 coins) | 3 | Prevent water from entering when spraying (60° angle) |
| 4 | Objects larger than 1mm (e.g., thinner than a credit card) | 4 | Prevent splashing water from entering (various angles) |
| 5 | Dustproof (small amount of dust doesn’t affect device) | 5 | Prevent jetting water from entering (low-pressure jets) |
| 6 | Dust-free (completely sealed against dust) | 6 | Prevent large waves from entering (high-pressure water) |
| 7 | Prevent water from entering when immersed (1m or more deep) | ||
| 8 | Prevent water from entering when sinking (under pressure) | ||
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