13 Pin Towbar Socket Tester

13 Pin towbar socket tester is perfect for checking all electrical circuits are working correctly after installation and before towing. Note: all caravan or trailer road lights should also be checked before every journey. Fitted with approx. 3.5m cable to allow testing while seated in the driver’s seat. Suitable for 12 volt vehicles fitted with a 13 Pin socket. Not approved for MOT test centre use. Note – circuits 8, 9 and 10 may not be present in all 13 Pin towbar applications.