- Easy to Use: Simply plug the lighting and cable tester into the socket or plug you wish to test, press the test button, and the LED indicators will provide clear diagnostic feedback. It’s designed for practicality and user-friendliness. - LED Indicator Light: Equipped with 6 LED indicators, this tester allows for quick and straightforward detection of errors. It efficiently displays any issues within vehicle or trailer circuits. - Wide Application: This 12V Electric Trailer Plug Tester is compatible with the standard 7-pin trailer connectors commonly found in cars, caravans, and recreational vehicles across Europe. - Dual Adapter Included: The kit comes with two adapters (13/7 and 7/13), enabling you to test both the traditional 7-pin and the newer 13-pin standards. Components included are the 7-pin trailer socket tester and both adapters. Use Scenarios: 1. Troubleshoot trailer lighting issues before a trip to ensure safety on the road. 2. Verify the functionality of electrical systems in caravans or leisure vehicles during maintenance checks. 3. Quickly diagnose problems in towing vehicles to prevent breakdowns and ensure compliance with electrical standards. This product is essential for vehicle owners, ensuring reliable electrical connections for safe towing and travel.