This product is an Automotive Short and Open Finder / Cable Tracker, and its main features include: Easy Wire Tracing: Allows you to know the path of hidden wires or wires within wiring harnesses without needing to tear the insulation or open the harness. Short & Open Circuit Detection: Helps you accurately locate the fault, whether there is an electrical short or an open circuit in the wire. Flexible Probe: The receiver has a flexible and bendable neck, making it easy to access wires in tight and crowded spaces under the dashboard or inside the engine. Safe for Car Electronics: Designed to operate with low DC voltage suitable for cars, ensuring no damage to the computer or sensitive sensors during inspection. Audible and Visual Alert: Emits tones and light indicators that change based on proximity to the fault, speeding up the diagnostic process.