7-WAY 6 Function RV Plug Tester For SUV Truck Trailer Lights & Controller. Free Shipping
Easy and quick to test trailer circuits on most trucks.
Heavy duty nylon housing.
Bright LED indicator lights.
Tests 6 separate trailer light functions: turn, brake, tail, stop, reverse and 12V.
Works with both the common 7 way trailer plug used on most SUV's, trucks, boats, trailers and RV's.
7-way flat tester can check all your trailer light circuits on your vehicle.
Confirms you have the 12 volt power supply (often needed to charge camper batteries or operate interior lights on cargo trailers) which often blow fuses.
Also checks your truck electric brake controller.
If the LED lights light up on this plug, you know it is not the vehicle.