Honiwu Trailer Light Tester, 7 Pin Trailer Plug Tester, Trailer Wiring Tester, 7 Way 12V Trailer Socket, Diagnostic Tools for Caravan RV Recreational Vehicle Truck

• 【Easy to Operate】Plug and play design, no cutting or splicing required, just plug the lighting and cable tester into the socket or plug you want to test, press the test button, the LED display will provide clear diagnostic information for trailers and RVs Tail light signals are displayed simultaneously.
• 【Easy to Use】European standard trailer connector, one side connects to the trailer's 7-pin plug and the other side connects to the towing vehicle's 7-pin socket, this tester will quickly indicate if the fault involves the car or trailer's wiring.
• 【Excellent Material】The appearance of the wiring tester is made of insulating material ABS. The cable has maximum durability, and the brass contacts and copper pin slots have better conductivity.
• 【Widely Applicable】12v 7-pin Trailer Electrical Tester is suitable for commercial vehicles, semi-trailers, trailers, caravans, bicycles. Good vehicle diagnostic tools and accessories.
• 【Satisfied Service】We care about every customer's feeling. If you have detailed information or questions about this item, you can contact us at any time and we will give you a satisfactory answer.

Specification: Condition: Brand New Contact Material: Copper Insulator Material: Plastics Shell Material: Plastics Color: As Picture Show Package Weight: Approx 174g Fitment: For Commercial/semi-trailer/trailer This product does not include a battery, you need to prepare a 9v battery yourself. 【Instructions】 Trailers, RVs 1. Connect the 7-hole plug at one end of the trailer to one end of the tester; 2. Press the yellow button on the side of the tester; 3. If all the LED lights light up, it means the circuit is normal; 4. If the LED lights are not on, the circuit connection is incorrect. Car 1. Connect the tester to the socket at one end of the car 2. Press the yellow button on the side of the tester 3. If all LED lights light up, it means the circuit is normal. 4. Test the function of each pin of each car socket: turn on the left turn signal and test the No. 1 indicator light Yellow will light up. If the LED light does not light up, it means that the line connection is incorrect or the line is broken. Repeat these two steps to test the right turn signal/fog lamp/etc. separately. Package List: 1 * 7 Pin Wiring Tester Note: 1. Professional Installation is highly recommended! 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.