1.Efficient Tracking and Locating Short Circuit: The power circuit probe tester is designed with advanced high-sensitivity probes, ensuring fast and accurate detection of wiring issues in your vehicle 2.Component Activation and Testing: This automotive power circuit probe tester can identify polarity and activate components within the vehicle's electrical system, making it suitable for both professionals and car enthusiasts 3.Visual and Audible Indicators: Equipped with an LED indicator light that shows red for positive and green for negative connections, along with a buzzer prompt, this tool simplifies the process of testing circuit conditions and identifying defects 4.Versatile Continuity Testing: The power circuit probe tester efficiently checks the continuity of switches, relays, diodes, fuses, and circuits, allowing you to ensure that every component in your vehicle's electrical system is functioning properly