Features 1. Designed to identify and trace wires or cables without damaging the insulation. 2. Can be used to check for short circuits and locate open circuits. 3. Flexible probe allows access to wires in tight or congested spaces. 4. Internally protected against power surges and overloads for reliable operation. 5. Transmitter and receiver LEDs indicate open or short circuit conditions. 6. Helps determine cable or wire continuity and identify break points. 7. Includes a storage bag for easy carrying and convenient storage. Specification Condition: Item Type: Electrical Circuit Tester Material: ABS Color: As shown in picture Battery: 2 x 9V Battery (Not Included) Main Function: 1. Quickly locate short circuit points in automotive circuits 2. Quickly locate open circuit points in automotive circuits 3. Trace and identify wires 4. Detect wire insulation leakage Function Introduction: Specialized electronic testing tool for automotive circuit diagnostics [Automotive Short Circuit/Open Circuit Line Finder]. Short circuit and open circuit detection are common challenges in automotive electrical troubleshooting. These issues can be time-consuming and difficult to diagnose, especially in accident-damaged vehicles. Even experienced technicians may only estimate possible fault locations, often resorting to manual inspection of each circuit. The EM415 automotive short circuit/open circuit tester is a dedicated tool designed specifically for efficient and accurate automotive circuit testing. Package List 1 x Car Electric Circuit Tester Set 1 x Manual