7 WAY RV PLUG TESTER FOR SUV TRUCK TRAILER LIGHTS & CONTROLLER!

Product Features:

Works with both the common 7 way trailer plug 
used on most SUVs trucks, Boat, trailers and RV's.

Tests 6 separate trailer light functions: turn, brake, tail, stop, reverse, and 12V

Check the Trailer plug on your SUV or truck!

This 7-way round 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.