Automotive Cable Wire Tracker Short & Open Finder Tester Car Repair Tool Transmitter and Receiver LEDs show open or short circuit conditions Receiver: On/Off button / Test button / Probe length: 7" flexible probe Sender:Tone/Off/Cont (Continuity) switch / Tone/Cont (Continuity) LEDs / Red and black test leads cable (61cm length, approximate) DC Voltage: Operates from 6 to 42 volts 7" flexible probe allows reaching wires in congested places