Tests 7 pin Spherical connector wiring. One man audible trailer tester saves time. The Pin Spherical Trailer Wiring Buddy also verified 12 volt charging signal in addition to trailer brake signal.
Every signal from vehicles emits a singular tone
Loud beep may also be heard over shop noise
Follow brakes, flip signals, running lighting fixtures, interact reverse and concentrate
Greatly reduces time spent verifying vehicles trailer wiring
This model also verified 12 v charging signal in addition to trailer brake signal