Shining House - 13 Pin Socket Tester - 12V - Trailer Lighting - Circuits - 7 Pin - Trailer Tester - Trailer Tester for Car, Truck, Caravan

Easy to use: Trailer (also suitable for motorhomes): Connect the 7-hole plug at one end of the trailer with the trailer tester, one end of the tester; press the yellow button on the side of the tester; if all the LED lights light up, it means the circuit is normal. LED indicator light: 13-pin socket tester, with which errors can be detected more quickly and easily and display faults in the vehicle or trailer circuit. Wide application: 12V socket tester for electric trailer. One end of the trailer 7 is connected to the 7-pin connector and the vehicle socket. Common European standards commonly used in cars, caravans, RVs and other vehicles With two adapters (13/7 and 7/13): You can also test the latest 13-pin standard, 13-pin socket tester. High quality: 13-pin socket tester, pendant, this trailer socket tester is made of premium PVC material, copper needle