13 Pin Car VAN Trailer Socket Electrical Tow Bar Light Wiring Circuit Tester

Automotive 13 Pin Towing Trailer Tow Bar Caravan Light Wiring Circuit Tester Plug Socket UK. This tester is for a trailer/caravan and tow bar socket/plug checker. To do this, you simply have to insert the tester into the socket or plug to be tested, press the test button and a clear diagnosis is made via the LED display.

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