AOHEWEI 7 Pin Trailer Plug Socket Tester Lights Connector 12V Wiring Circuit Electrics Diagnostic Testing Tool for Trailer Caravan Truck

• Fast Check -- The 7 pin trailer tester is designed to indicate a failure in the wiring circuits on both towing vehicles and trailers promptly.
• Easy to Assemble -- This 12v trailer light tester is easy to operate. One side connects to 7pin plug and the other side to 7-pin socket ( only for testing 7pin without adapter)
• Premium Quality -- These electric wiring testers are selected with superior plastic and cross slotted copper, which naturally match with the female pin.
• Extensively Use -- The 7 way trailer plug tester set is normal European standard. It can be widely used to car, caravan, RV, or any other commercial vehicle freely.
• Kindly Reminder -- The trailer socket tester requires 1pc 9V battery (not included).

7 Pin Car Accessories Towbar Towing Plug 12V Caravan Socket Plastic Diagnostic Tools Trailer Electrics Light Connector Tester Specifications: Material: Plastic & Brass Voltage: DC 12V Contents: 1 x tester (only for testing 7pin without adapter) Tips: The body plugs can directly into either 7 pin N type plugs or sockets and gives a continuity test on all lighting circuits. 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.