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IP Code(International Protection Code) Also called "ingress protection rating," the IP code is a measurement of a product's resistance to solids and water. Starting with the "IP" prefix, the first digit rates solids and the second is for liquids. For example, an IP69K device is dust tight, and it resists high-pressure water.
First Digit - Solids Protection (0-6)
0 = none
1 = objects greater than 50mm
2 = objects greater than 12.5mm
3 = objects greater than 2.5mm
4 = objects greater than 1mm
5 = dust protected
6 = dust tight
Second Digit - Water Protection (0-9)
0 = none
1 = dripping vertically
2 = dripping at an angle
3 = spraying
4 = splashing
5 = jets using 6.3mm nozzles
6 = powerful jets using 12.5mm nozzles
6K = powerful jets using 6.3mm nozzles
7 = immersion up to 1 meter
8 = immersion greater than 1 meter
9K = high power jets and high temperature
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