1.QUICK AND EASY DIAGNOSTIC: Car open short circuit finder tester, judge continuity of the cables or wires, and diagnose the break point; Time saver, car tool short finder making your repairs quicker, makes things easier to find troubles.automotive cable wire tracker car short open circuit finder testers em 415 pro 2.WORKING VOLT: Car open short circuit finder tester is compatible with a wide range of circuits operating between 6 and 42 volts DC, including automobiles, trucks, tractors, boats, RVs, and more. Versatile for various applications with its wide working voltage range 3.LOCATE OPEN CIRCUITS: Open Wire Detector instantly detects and alerts you to open circuits.You can quickly and easily Locate short circuits, open connections, broken wires, current leaks and even trace wires.Transmitter and receiver LED indicate open or short circuit conditions 4.CHECK SHORT CIRCUITS: Short circuit finder for automotive, you can also find intermittent circuit problems by flexing wires or connectors and listening for a change in the receiver. This automotive circuit finder with flexible probe, It can helps reach wires in congested places