Main material --- ABS and copper

Quick check --- This trailer socket has one side to connect a trailer's 7-pin plug and another side to connect a car's 7-pin socket. This tester quickly indicates if there is a fault in the car's or trailer's wiring, and effectively tests the problem with 7-pin plug and socket connection.

European universal standard --- Approved by Europe CE, ROHS certification, ensuring maximum strength and durability for long-term use. Such a practical trailer testing tool that you need.

Reliable quality --- 7-pin trailer tester with safe and reliable performance, reasonable design. Skillful appearance, convenient use. The trailer tester socket is widely suitable for caravans, motorhomes, RVs, vehicles, trucks, trailers, etc. The test requires a 9V battery (not included)

High performance --- The car trailer socket tester is made of high-quality ABS and copper, its frosted surface, durable and reliable, guarantees resistance and maximum durability for long-term use. One side connects to a 7-pin plug and the other to a 7-pin socket, can also be applied to 13-pin with the adapter. (7-pin trailer tester + 2 x 7 13 converter)