7 Pin Trailer Tester for Truck RV Wiring

1 Smart Socket Tester: This socket tester can test every pin socket functions of the car, and the whole operation is very simple. 2 Clear in Indication: There are clear lights and label on the test tool, this tester indicates quickly if a failure concerns the wiring. 3 Wider Compatibility: One side can connect the 7 pins plug of a trailer and another side can connect the 7 pins socket of a car for test. 4 Good ABS and Copper: Mainly made from premium ABS and copper material, not likely to malfunction and has good durability for long term use. 5 Convenient Carrying: Comes with a compact size and a light weight as well, the trailer socket tester is very convenient to carry with you.

What's in the box
1 x Socket Tester