About This

• Over time, original trailer light testers may become inaccurate or fail, leading to misdiagnosed wiring issues, undetected light failures, or even potential electrical damage such as short circuits or blown fuses. This can increase safety risks and result in costly repairs or downtime. Our trailer light tester provides a reliable and accurate solution to help you quickly identify problems, protect your electrical system, and ensure safe towing every time
• 【All-in-One Independent Testing】Combines 7-way blade, 6-way round, and 4/5-pin connectors in one unit, enabling compatibility with multiple trailer types. With built-in independent testing capability, it allows full diagnostics of tail lights, brake lights, turn signals, and electric brakes without connecting to a tow vehicle—ideal for pre-trip inspections and workshop use
• 【Rugged & Weather-Resistant Build】Built with a durable, water-resistant housing to withstand harsh workshop and outdoor conditions. Effectively protects internal circuits from dust, moisture, and wear for long-lasting performance
• 【Safe & Reliable With Circuit Protection】Equipped with built-in short-circuit protection to prevent electrical damage during testing. The auto-reset feature ensures safe, stable operation even when wiring faults are present
• 【Compact, Portable & Easy To Use】Lightweight and easy to carry with a simple plug-and-test design. Powered by a standard 12V battery (not included), making it convenient for mobile diagnostics anytime, anywhere
• 【Feature】This trailer tester provides a simple all-in-one solution for quickly checking trailer wiring without a tow vehicle. With easy plug-and-test operation, built-in safety protection, and a durable, portable design, it helps you diagnose issues fast and ensure reliable performance anytime
• 【Buy With Confidence】Purchase the SUSUPACi 7-Way Trailer Tester with confidence, backed by a 1 year warranty. Should it malfunction, contact us for a prompt replacement. Enjoy excellent value as a reliable, cost-effective alternative to dealership pricing, with no compromise on quality or peace of mind

Overview

• Brand : SUSUPACI
• Power Source : Corded Electric
• Style : Compact
• Color : Black
• Min. Operating Voltage : 12 Volts