7-Pin Trailer Lights Plug and Socket Tester 12V Wiring Circuit with 13-Pin Caravan Adapter Converter Connector

Quick Check - The 7-pin electrical diagnostic tool tester is designed to quickly identify wiring faults in towing vehicles and trailers

Easy to Assemble - This 12V brake light tester is easy to use. One side connects to a 7-pin plug and the other to a 7-pin socket; it can also be used with 13-pin sockets using the included adapter.

Premium Quality - These electrical wiring testers are made with superior plastic and cross-grooved copper wire, which naturally connects to the female pin.

Heavy Duty - The 7-way trailer plug tester set conforms to the European standard. It can be widely used in cars, caravans, motorhomes, or any other commercial vehicle.

Friendly Reminder - The trailer circuit tester requires a 9V battery (not included).