Trailer Plug Socket Tester, EVERGD 12V 13 Pin Trailer Light Connector Cable Wiring Circuit Diagnostic Testing Tools Tester for Towing Car Caravan RV Cars Truck

• This 13 Pin Trailer Light Tester can quickly indicate the circuit faults in the wiring circuit on the towing vehicle or trailer, the trailer light circuit tester requires 1PC 9V battery (not included). One side connects to 13pin plug from the towing vehicles and the other side to 13pin socket from cars.
• The trailer plug socket tester 13 pin has passed European CE and RoHS certification. The 12V 13 pin trailer tester is normal European standard which is used for Trailers, Caravans, Cars, Tow Bar, Bike Carriers, Lorry, Camper Vans, Motorhome, RV with 12v electric system, making your driving safer on the way!
• This electric wiring tester is made of superior plastic and cross slotted copper needles, which cooperate with the female pin, surface after frosted, stable connection and naturally match with the connectors.
• Plug & play design. Just plug the wiring tester into your vehicle's connector, press the button and a clear diagnosis will be showed via the LED lights.
• The tester adds a battery card slot design, the battery is easy to install, only 1PC 9v battery is required. High-quality PVC circuit board, high wiring density, light weight, thin thickness, etc.

13in Trailer Plug Socket Tester Specifications: Material: Plastic & Brass Voltage: DC 12V Contents: 1 x tester (only for testing 13pin without adapter) Tips: The body plugs can directly into either 13 pin N type plugs or sockets and gives a continuity test on all lighting circuits. How to use? Please test the trailer end and the car end separately, don't need to connect and test at the same time when using. Trailer (can also be a caravan, bicycle, carrier or other commercial vehicle): 1.Connect the trailer plug to the tester. 2.Press the yellow button on the side of the tester. 3.If the wiring is good, all the LEDs will light up. Car: 1.Connect the car socket to the tester. 2.Press the yellow button on the side of the tester. 3.If the wiring is good, all the LEDs will light up. 4.Turn on the left turn signal, the tester's TURN L indicator lights up, if it doesn't light up, it means the line is incorrectly connected or damaged. Repeat the steps to turn on the right turn signal, fog lamp, etc. Note: If a LED doesn't light up, because the corresponding wire is defective. If all the LEDs don't light up, then the mass wire is damaged or all bulbs are defective.