EASY INSTALLATION & DISASSEMBLY: Simple plug-and-play design, just plug the 7-way trailer plug tester into the connector, turn on the vehicle lights and signals, then check the LED lights on the tester. Each of the indicator light with clear labeling to tell you which of your towing vehicle lights work or not. No extra tools or batteries needed, simple and easy, that's it.
LONG-LASTING CONSTRUCTION: The tough nylon body and copper terminals, provide excellent water/high temperature/wear/corrosion resistance, extend the life of the 7 way trailer plug tester.
MULTIPURPOSE USE: This 7 pin trailer plug tester tests for taillights, brake controller output, back up or reverse circuit center pole, right turn/brake, left turn/brake and 12-volt power feed. Tests 6 separate trailer light functions.
WIDE ADAPTABILITY & 1 YEAR WARRANTY: No need for multi plugs to tow various vehicles, it works for nearly all the common 7 way trailer plug used on most SUV's, Trucks, Boats, Trailers Campers, Caravans, Food Vans and other Towed Vehicles. Besides, there is 1 year warranty for the seven pin trailer plug tester. Both are quite practical for drivers.
PRACTICAL DESIGN: Small size for easy carrying, this trailer light tester can be stored in a glove box or tool box, no spare space need to be taken up.