IP ratings (Ingress Protection) will tell you if a product is suitable for wet environments. The ratings consist of the letters IP followed by two digits (characteristic numerals) sometimes an optional letter is used.

The first digit indicates the level of protection against penetration that the enclosure provides against solid objects (including body parts, like fingers and hands) accessing hazardous parts, the second describes the protection against the ingress of water or liquids.

This rating standard aims to provide users with more detailed information than just vague marketing terms such as waterproof or water resistant.