QUICK TROUBLESHOOTING TOOL: Easily identify trailer wiring issues, including turn signals, brake lights, and tail lights, with this 4-way trailer wiring tester.
DURABLE & HIGH-QUALITY MATERIALS: The 4 pin trailer tester is made of rugged nylon and tinned brass terminals for reliable connections and long-lasting use.
EASY TO USE: Trailer tester quickly connects to the vehicle side for efficient trailer tow connector testing, providing clear results for light functionality.
COMPACT & PORTABLE DESIGN: The trailer light plug 4 pin tester is Small enough to fit in a glove box, pocket, or toolbox, perfect for on-the-go repairs and inspections.
WIDE APPLICATION: The trailer tow connector tester is the Ideal for professionals and DIYers testing 4-pin trailer light systems and tow vehicles.1 Year Warranty by GLUWPA.