SecoRüt Test box for vehicle trailers

This testing box allows for the inspection and control of the wiring and connections of the trailer sockets on both the vehicle and the trailer. A new feature is the visual display of the negative wires of the 13-pin trailer socket (three negative wires must be connected). Additionally, the user has the option to check the connections of negative wires 9 and 10 of the vehicle socket. The testing box is equipped with a cable approximately 5 meters long and a combination plug for 7/13 pins, designed for use by a single person. The delivery comes in a plastic case.