Ensure your trailer lights are always road-ready with this 12V 7-pin Trailer & Connector Socket Tester. Designed with a clear LED display, this handy device quickly checks the functionality of your trailer or caravan's lighting system—making it an essential tool for any vehicle equipped with a tow bar.
Regularly inspect your connections to avoid dangerous faults caused by infrequent use or contact issues. This tester lets you easily identify whether any problem lies with your trailer or your vehicle’s tow socket. Each pin has its own dedicated indicator, helping you pinpoint exact faults for a safer journey.
Suitable for use with trailers, caravans, and even bicycle racks. Compatible with CAN-BUS systems.
Pin indicators:
Yellow – Left indicator
Blue – Rear fog light (+)
Green – Right indicator
Brown – Right tail light
Red – Brake light
Black – Left tail light
Requires one 9V battery (6LR61), not included.
