Vechline QQ012012 13 Pin Socket Tester

Plug the tester into either the cars 13-pin socket or the trailers 13-pin plug and press the yellow button on the side of the tester. The lights will flash and indicate if there are any faults with the lights of the vehicle. Tests 13-pin N plugs and sockets Plugs directly into N type 13-pin plug or socket to test all lighting circuits Portable and lightweight Requires 1 x 9V PP3 battery (not included)