Precision Diagnostics: Used to measure and troubleshoot trailer circuits including left and right turnsignals, hazard lights, brake lights, clearance, tail tags, or ABS circuits
Simple Operation: Designed for "one-man testing," this 7 pin trailer plug tester helps drivers quickly identify and fix electrical problems while on the road
Clear LED Indicators: Bright lights display circuit functionality for turn signals, brakes, and more, clearly and accurately reflecting the problem, eliminating guesswork
Includes Jumper Connector: Comes with an extra jumper for versatile testing, making it a must-have for truckers and fleet maintenance
Plug-and-Play Simplicity: Tests both male and female 7-way round pin (SAE J560) connections instantly—no tools or expertise required