7-Way Towing Trailer Wiring Circuit Tester - 91006774987

Highlights

• Tests 7-way round tow plugs individually
• Easily determine if wiring is correct between tow vehicle to trailer
• Plug into vehicle's tow plug and operate lights, brakes and turn signals to test circuits
• LEDs light up to indicate a good signal
• Durable housing is impact resistant for long use and dependability