Draw-Tite 7-Way Circuit Tester

Plug this tester into any car with a 7-way and you will have an instant test of running light circuits. Features LED display to show completed circuit for the running lights, left turn signal, and right turn signal. Auxiliary, electric brake, and battery charge are included with this 7-way tester. One piece units with internal ground. Proper installation and set-up of a brake control, when a trailer is not readily available is possible with this 7-way tester.