Description: This trailer tester is designed to test 7 pin plugs and sockets on a car and trailer and warns of any wiring circuit failure on the car or trailer. One side for connecting to a 7 pin plug of the trailer and the other side to the 7 pin socket of the towing vehicle. Makes the checking of the wiring quick, easy and simple. LED Indicating lights. Tough, durable plastic casing. Specification: Specification:12V / 7 Pin Requires a 9V Battery (Not included) Size:Approx.195*50*25MM Material: Package Includes: 1 x Trailer Tester
