7 Way Blade and 4 Pin Trailer Light Circuit Tester With LED Indicators And 2 In 1 Design, 6 Function Light Tester For RV, Truck, Vehicle Side Sockets, And Tow Trailer Lighting Systems

7 Way and 4 Pin Trailer Light Tester with LED Indicators
✔️ 2-in-1 tester tests 4-pin and 7-pin, with 6 LED-lit functions

This 7 blade RV trailer tester combines a 4-pin and 7-way blade tester to quickly verify trailer wiring on trucks, RVs, boats, caravans, and other towed vehicles. Pack size: single unit.

✅ 2 in 1 design for 4-pin and 7-way trailer connectors
✅ Tests 6 light functions: taillights, brake lights, reverse lights, turn signals, electric trailer brakes, and 12V auxiliary power
✅ LED indicators for each function for quick diagnosis
✅ Durable ABS plastic body with tin-plated copper terminals for conductivity
✅ No batteries or wiring needed; plug-in use

💡 What is a trailer light tester used for with 4-pin and 7-way connectors?

This handy tool helps diagnose wiring and lighting across 4-pin and 7-pin connectors. - Tests taillights, brake lights, reverse lights, turn signals, electric trailer brakes, and 12V auxiliary power - 2-in-1 design tests both 4-pin and 7-pin connectors - LED indicators reveal exactly which circuit is failing - Durable ABS plastic body with tin-plated copper terminals ✝️