"Locate short and open circuits without having to remove plastic panels, molding and carpet","Traces shorts and open wires with visual navigation and sound indicators","Pinpoint shorts, open circuits, switches and breaks in wires","Adjustable distance indicator allows for a trace distance up to 8\" from the wire","Operates on 12-24V systems","Trace short circuits with directional indication trace open circuits with LED indication ELECTRONIC CIRCUIT TRACER (RECEIVER/TRANSMITTER ONLY) PPECT3000B | Matco Tools