European-Style 7-Pin Trailer/RV Wiring Tester

7-Pin Trailer Plug & Socket Tester, model CS170E-T, manufactured according to ISO 1724 standard. Designed for 12-Volt trailer wiring system. Quickly diagnose open circuits, poor connections and wrong wiring via LED indicator lights. Essential diagnostic tool for caravans and trailers.

Instant Trailer Wiring CheckPlug-and-play, no extra power supply required. LED lights show status for each of the 7 pins. Fast fault diagnosis without multimeter measurement.

ISO 1724 CompliantBuilt to ISO 1724 standard for 12V trailer systems. Durable nylon housing with solid copper contacts for stable conductivity.

Test both plug and socketWorks for male plug and female socket. Verify wiring on both vehicle-side and trailer-side to locate faults of tail light, brake light, turn-signal and reverse light.

Lightweight & portableOnly 161g, compact size for in-vehicle storage. Pre-trip quick inspection avoids lighting failure on road trips.

Clear LED indicationIndicators correspond to turn signal, brake lamp, side lamp, reverse lamp and other circuits. Easy-to-read even for non-professional users.

Application Scenarios

Caravan & camper trailers

Cargo tow-behind trailers

Recreational utility trailers

Workshop repair & trailer maintenance

What's in the box
1 x Wiring Circuit Tester