A specially designed tool for tracking and tracing short and open circuits, broken wires and current leaks on any electrical circuit with voltages from 6 to 42 Volt DC. The automatic open/short detection, adjustable sensitivity and flexible antenna probe enables the technician to troubleshoot a complete array of common electrical problems without having to untie wire harnesses or remove panels. 8 in. flexible probe reaches in congested places. Adjustable sensitivity. Transmitter and receiver LEDs signal open or short circuit conditions. Auto polarity transmitter that leads with 5 amp alligator clips. Includes 18-9906 Cordless Circuit Tester & 18-9907 Fuse Socket Test Connectors. Includes hard shell carrying case.