Pollak 7-Way Blade LED Trailer Wiring Circuit Tester 12-741EV 19-1445

Features LED display to show completed circuit for the running lights, left turn signal and right turn signal. Auxiliary circuit LED display is included on the 5-way tester, auxiliary and electric brake are included on the 6-way tester, and auxiliary electric brake and battery charge are included with the 7-way tester.