The chart at the right illustrates the use of special symbols in the IP classification system In the "1st digit" column, not the gridlike symbols net to numbers 5 and 6 In the "2nd digit" column numbers 38 are symbolised by teardrop shaped symbols, sometimes enclosed in a box or a triangle, sometimes unenclosed (#78) These symbols can be placed on equipment to illustrate the IPIP (Ingress Protection) ratings classify the level of protection that the casing of a device provides against solids and liquids entering into and damaging the device They are usually made up of two digits First Digit SOLIDS The first digit tells you how effective the walkietalkie is at preventing solids getting inPolynova PJ Adaptable box IP55, IP34 IP55 Plastic Polynova PM Modular
Harsh Environment Sensors Amphenol Advanced Sensors Mouser
