Feature 112V electrical trailer plug & socket wiring tester 2One side connects to the 13-pins plug of a trailer and the other side to the 13-pins socket of the towing vehicle 3With LED indicators, can indicates failures in the wiring circuits on the car or trailer 4For use with 13-pole plugs and sockets 5Made of high quality plastic material, lightweight and durable Description: This 13 Pin Trailer Plug & Socket Wiring Tester is designed for testing the lighting circuits on both towing vehicles and trailers/caravans etc. The body plugs directly into either 13-pin N-type plugs or sockets and gives a continuity test on all lighting circuits. Features: 12V electrical trailer plug & socket wiring tester. One side connects to the 13-pins plug of a trailer and the other side to the 13-pins socket of the towing vehicle. With LED indicators, can indicates failures in the wiring circuits on the car or trailer. For use with 13-pole plugs and sockets. Made of high quality plastic material, lightweight and durable. Specifications: Material: ABS + Brass Color: Black Plug: 13 Pin Voltage: 12V Package Weight: approx. 250g Fitment: for 13 pin trailer plug socket connector(N-Type) tester Package Included: 1 x 13 Pin Trailer Socket Tester