This 7-pin RV Blade wiring tester is designed for quickly and easily checking the wiring of trailer lights and the towing vehicle's electrical outlet. It's compatible with the American 7-way blade connector (commonly used on RVs, pickup trucks, and heavy-duty trailers).
Using clear LED indicators, you can check at a glance whether functions such as turn signals, brake lights, tail lights, ground, 12V power supply and electric brakes are working correctly.
Advantages
Quick diagnosis of wiring problems
Suitable for 7-pin RV blade connections
Clear LED display per function
Plug and play, no tools required
A practical and reliable solution to quickly detect faults in trailer lighting and get on the road safely.
