Trailer Plug Tester with 7 Blades 12V 7-Pin Trailer Light Wire Circuit Tester for RV Trailer Camper Truck

This 7 pin trailer tester plug has one side to connect the 7-pins plug of a trailer and another side to connect the 7-pins socket of a car. This tester indicates quickly if a failure concerns the wiring of the car or the wiring of the trailer, which can effectively test what the problem is for 7 pins plug and socket connection. Specifications: Main Material: ABS & Copper Color: Black Item Type: Diagnostic Tools Item Name: Trailer Tester Size: approx. 20 * 5 * 4cm Battery Type: 9V (Not included) Package Size: 20 * 5.5 * 4.5cm / 7.9 * 2.2 * 1.8in Package Weight: 194g / 6.8oz Package list: 1 * 7-Pin Trailer Tester Tool 1 * English User Manual