Feature: 1. Designed to identify and trace wires or cables without damaging the insulation. 2. You can also use it in checking for short circuit and locating open circuit and so on. 3. With the flexible probe, you can reached wires in congested places. 4. Internally protected against power surges and overloads, more dependable to use. 5. Transmitter and receiver LEDs show open or short circuit conditions. 6. Judge continuity of the cables or wires, and diagnose the break point. 7. Comes with a storage bag, easy to carry and store, convenient for using. Specification: Condition: 100% Brand New Item Type: Electrical Circuit Tester Material: ABS Color: As picture shown Voltage: DC 6-42V Battery: 2 x 9V Battery (Not Include) Main Function: 1. Quickly find the short circuit point of the automobile circuit 2. Quickly find the open circuit point of the automobile circuit 3. Tracking wires 4. Quickly find the wire leakage Function Introduction: Automobile special electronic testing tool [Automobile (short circuit/open circuit) line finder] Short circuit/open circuit detection is a problem often encountered in the automotive circuit detection process, but sometimes it is often time-consuming and laborious to detect. For automotive electricians, it is more often to detect circuit failures, especially short-circuit open circuit failures of accident vehicles. This type of fault is very difficult to detect. Even experienced maintenance personnel can only roughly judge a few possibilities, and finally have to "pick" this circuit, and if there is no experienced maintenance personnel, only one It is time-consuming and laborious to “pull” one by one, but it is not necessarily effective. The EM415 automotive short circuit/open circuit tester is a special tester specially developed for testing automotive circuits. Package List: 1 x Set of Car Electric Circuit Tester1 x Manual