With the rapid development of modern science and technology, the requirements for product quality and application range of all walks of life are getting higher and higher. For example, our waterproof plug is generally used indoors or outdoors.The waterproof and dustproof level for indoor use is IP65, which is sufficient. The level of outdoor use is generally in the range of IP66-IP67, which can prevent splashing and occasional soaking, but occasional soaking still cannot meet the market demand. For example, some waterproof plugs need to run in the sea, need to soak in water for a long time, but also impact resistance, pressure resistance, in this case, we usually recommend customers to use the waterproof level of IP68 waterproof plug. Also has a lot of users have doubt, can we can be free to use in the sea of IP68 waterproof, not really, can detect the depth of the normal operation in the sea is 3 to 5 meters, 50 meters, the deepest but now any company can detect 50 metres depth, macro tech, reminding the user when choosing waterproof plug must according to the application environment to choose!