5 Way Trailer Light Wiring Tester Circuit Test LED Indicator 4 / 5 Pin Plug

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. 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. Tests 6 separate trailer light functions. 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.