Innovative Products of America has designed a line of portable battery-powered trailer testers for testing lights and electric brakes on a wide range of trailers. The Mini-Mutt No. 9003 is an analog tester for 4-, 5-, 6- and 7- pin light-duty trailers featuring short-circuit protection and amperage readout.
The Smart-Mutt series No. 9004 and No. 9007 both offer advanced diagnostic testing capabilities that allow a technician to diagnose short circuits, open and crossed circuits, poor grounds and test electric brakes – all by remote control. All models include rechargeable batteries and a charger.