Ensure the safety and functionality of your trailer and vehicle electrical connections with this Smart Trailer Socket Tester. Designed to test every pin socket function of a 7-pin trailer plug and car socket, this tester simplifies troubleshooting and guarantees reliable wiring performance. Crafted from premium ABS and copper materials, it delivers durability and long-lasting use, making it an essential tool for trailer and RV owners. Key Features: · Comprehensive 7-Pin Socket Testing: Accurately tests all pins of the car and trailer socket to identify wiring faults quickly and effectively. · Clear and Intuitive Indication: Equipped with bright indicator lights and clearly labeled functions, allowing you to easily detect wiring failures without confusion. · Wide Compatibility: Compatible with standard 7-pin trailer plug and socket connectors, making it suitable for trailers, RVs, and other towing vehicles. · Durable Construction: Made from high-quality ABS plastic and copper components to ensure reliable performance and resistance to wear over time. · Portable and Lightweight: Compact size and light weight for easy storage and convenient carrying, perfect for on-the-go use during travel or maintenance. Specifications: · Item Type: Trailer Socket Tester · Material: ABS, Copper · Battery Requirement: 9V Battery (Not Included) · Applicable Range: Suitable for testing N-type 7-pin trailer plug socket connectors, trailers, and RVs Package Includes: · 1 x Trailer Socket Tester This Trailer Socket Tester is a practical and reliable diagnostic tool designed to help you maintain safe and effective trailer electrical connections, preventing potential wiring issues before they cause problems on the road.