Trailer Plug Tester 4Way Flat Connector Ensure your trailer's electrical system is working correctly with this reliable 4way flat trailer plug tester. Designed for quick, accurate troubleshooting, it helps you verify proper wiring, identify faults, and maintain safety on the road. Key Features and Benefits: Complete Package: Includes 1 quality trailer plug tester, ready for immediate use. Durable Construction: Made from robust quality plastic, resistant to daily wear, impact, and rough handling. Built to withstand repeated use in workshop and outdoor environments. LED Circuit Indicators: Bright LED lights provide clear, instant feedback on circuit status, making it easy to spot wiring problems quickly. Simple Operation: Connect the tester's 4pin plug to your trailer's matching connector, power on the trailer lights, and observe the LED responses. No complicated setup required. Universal Compatibility: Fits most trailers equipped with standard 4way flat wiring connectors. Ideal for checking brake lights, running lights, and turn signals. Practical Applications: 1. Pretrip safety inspections before towing to ensure all lights and signals work correctly. 2. Troubleshooting trailer wiring when lights fail or behave inconsistently. 3. Regular maintenance checks for fleet trailers to minimize downtime and avoid roadside issues. Specifications: Connector Type: 4way flat Material: quality impactresistant plastic Indicators: Bright LED lights for clear visibility in daylight or lowlight conditions Function: Tests running lights, brake lights, and left/right turn signals This 4pin trailer plug tester is a dependable tool for anyone who tows, from occasional recreational users to professional drivers and fleet operators. Designed for accuracy, durability, and ease of use, it ensures your trailer's lighting system is safe and compliant every time you hit the road.