13-Pin Trailer Connector Tester, Car Diagnostic Tool, Light, with Circuit Plug Test for Trailer Connector, Diagnostic Tool for

1. Practical Function: This adapter is a lighting and wiring tester for trailers and tractors. Our testing device ensures the fastest and easiest way to find wiring faults on trailers and tractors. 2. Easy to Use: Faulty wiring colors are indicated by the device via LEDs. All 13-pin sockets and plugs can be checked. To do this, simply insert the tester into the socket to be tested, press the test button, and a clear diagnosis is displayed on the LED screen. 3. Construction: Made of high-strength ABS plastic and copper, it is shock-resistant, wear-resistant, anti-aging, and has a long service life. 4. Excellent Performance: Using brass as a conductor provides good electrical conductivity, more stable operation, and greater convenience. 5. Battery Powered: Thanks to the internal battery power supply, no external power source is needed. The trailer tester also does not need to be connected to the vehicle. Specification: Item Type: 13-Pin Trailer Plug Tester Battery Specification: 9V Battery (Not Included) Application: Suitable for testing 13-pin trailer plug connectors. (RVs can also be used) Package List: 1 x 13-Pin Trailer Plug Tester