IP Ratings: (Ingress Protection or International Protection) - The Ingress Protection rating system is a classification system showing the degrees of protection from solid objects and liquids. Waterproof connectors can be classified into different kinds of grades. The two principal grade classifications for waterproof connectors are IP67 and IP68.
IP68 connector can be regard as highest waterproof connector. According to the waterproof connector sealing performance criteria, IP68 connector means it can completely prevent dust entering and can continuously under pressure immersed in. IP68 waterproof connectors are designed for demanding environment dust tight and continuous immersion.