Mini-MUTT #9003

Innovative Products of America's Mini-MUTT, No. 9003, is an analog tester for 4-, 5- 6- and 7-pin light duty trailers, and features short-circuit protection and amperage readout. Allows for easily diagnosed short circuits, open and crossed circuits, poor grounds and tests electric brakes, all by remote control. Includes rechargeable batteries and charger.