180° Twistable Vehicle Side Trailer Socket Tester, 7 Way Blade & 4 Pin Trailer Light Wire Circuit Tester 6 LED Indicators Towing Vehicle Trailer Wiring Plug Tester for RV Truck Trailer Light

Product description MECMO 4 Way Flat and RV 7 Way Trailer Light Tester for Vehicle-Side Plug.

4 & 7 Pin Trailer Connector Tester, test your vehicle's wiring harness by simply plugging either 7 way or 4 Way Flat trailer socket at your Vehicle's end connector.

Heavy duty construction - Designed to be weather, corrosion, and impact resistant for years of reliable service.