Tester plugs into connector of tow vehicle and illuminates when the electrical connections are correct.
Plug this tester into any 7-way RV car connector socket and you will have an instant test of running light circuits. Features LED display to show completed circuit for the running lights, left turn signal, right turn signal, brake lights, electric brake and battery charge. One piece unit with internal ground.
- Black Plastic
- Includes 6 LED lights for showing functionality of circuits
- Plugs into 7-way RV socket