AOHEWEI 7 Pin Trailer Plug Tester Socket Light Connector Wiring Circuit Diagnostic Testing Tools with 13 Pin Towing Adapter for Caravan Truck or Trailer

• Fast Check -- The 7 pin trailer light tester is designed to indicate a failure in the wiring circuits on both towing vehicles and trailers promptly.
• Easy to Assemble -- This trailer plug tester is easy to operate. One side connects to 7pin plug and the other side to 7-pin socket, also can be applied to 13 pin with the adapter.
• Premium Quality -- Those electric wiring testers are selected with superior plastic and cross slotted copper, which naturally match with the female pin.
• Kindly Reminder -- The trailer circuit tester requires 1pc 9V battery (not included).
• International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

7 Pin Towbar Trailer Tester with Adapters Towing Plug Diagnostic Testing Tools 12V Electrics Light Connector Tester Truck Accessories Specifications: Material: Plastic & Brass Voltage: DC 12V Contents: 1 x tester 2 x adapters (one is 7pin to 13pin, another is 13 pin to 7 pin) Tips: The body plugs directly into either 7 pin N type plugs or sockets and gives a continuity test on all lighting circuits. Also included in this kit has a pair of adapters that allow you to also test 13 pin plugs and sockets. How to test the connection of a Trailer (can also be a caravan, bicycle, carrier or other commercial vehicle)? 1. Connect the tester with plug or socket. 2. Press the yellow button on the side of the tester. 3. If the wiring is good, all the LEDs will light up. The function of each LED is (acc ISO 1724): left hand indicator (yellow); fog light or 12V (blue); mass (white); right hand indicator (green); right rear light (brown); left brake light (red); left rear light (black). Attention: The pin No.2 can be used either for a warning fog lamp or a permanent 12V connection.