Description
Suitable for 4-pin small trailer light testers and circuit troubleshooter, quickly and easily check whether your trailer wiring is properly installed on your vehicle.Compact pocket design 4 way flat trailer tester with a key ring for easy carry, you can attach it on your key holder. No batteries needed!.Brass connectors makes better conductivity; Waterproof ABS Plastic Housing designed to be weather, corrosion, and impact resistant for years of reliable service.Bright LED Indicators. This 4-way trailer circuit tester features a LED light for each electrical functions, turn on the lights and check, you can easily read the LEDs and find out which wiring has a problem.Compact Design. Small size trailer plug tester is convenient for storage, allows you store in your tool box, glove compartment or anywhere to be ready when you need it. Take this tester to be your assistant when needed wherever you go
