Maypole 12n Towbar & Trailer Wiring Tester 7pin
MP1804B 12N 7 Pin Car and Trailer Tester.
3 in stock
MP1804B 12N 7 Pin Car and Trailer Tester. 12N 7 Pin car and trailer tester for testing ISO1724 /12N. 7pin circuits. LED indicators show any faults on the towbar or trailer lighting circuits. Requires 1 x 9V PP3 battery (not included) for testing trailer lighting. Note: Not suitable for use with LED trailer lights. Towbar testing requires ignition to be switched on and each function activated in turn. Indicators will show green when function is tested and correctly wired, or red if a fault is present.