7-pin trailer plug and socket - 7-pin trailer socket connector provides the connection between towing vehicles and additional trailers. High-quality contact materials, enables an effective connection. Suitable for European standard wiring systems, applies to caravan/truck/boat/motorhome/car/tractor/trailer accessories. Waterproof socket - Waterproof seal made of silicone rubber, thermoplastic body, prevents rust or corrosion, thus extending the service life. Quick and easy installation - Plug and play design, connect the insert to the socket, no need to change the cable and solves the problem of unsuitable socket, ideal for new towbars or to replace the damaged socket on existing vehicles. Features: - High-quality contact materials, enables an effective Connection. - One side is a 7-pin aviation plug, the other side is a cable gland waterproof cap. - Widely used in data acquisition systems, inclinometers, computer automation measurement and control systems, mechanical equipment,