Trailer Board 7 Pin Socket & Plug Tester 12V
This tester has one end to connect to the 7 pin plug of a trailer and another to connect to the 7 pin socket of the vehicle. Easy to read LED display. Single handed operation. Requires a 9 volt battery.
7 Pin LED Trailer Plug
This New LED Plug ensures safe towing by providing an accurate visual-check, via six illuminated LEDs, which light up to indicate enough power is supplied through each correct circuit and that the power from the source is active through the trailer plug. I...
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