7 Way Round RV Connector Light and Function Tester

This is a trailer wiring testing device for 7 RV Round Vehicle end Connections. The LED Lights are labeled and will light up when they receive power from the Vehicle Side. Simply plug the Tester into your Tow Vehicles 7 Round Connector and check to see that everything is working appropriately. This device allows you to test for tail, brake, reverse, turn signals, brakes and auxiliary power. This is a handy tool to have ready to diagnose any possible electrical issues on your boat trailer, RV trailer, or towing vehicle. Features: – 7 Round RV Tester for Vehicle Side Connections – Clearly Labled and Easily Visible LED lights – Tests for tail, brake, reverse, turn signals, brakes and auxiliary power