1. Enhanced Safety & Convenience The anti-lost silica gel needle cover is integrated into the premium stainless steel probe, preventing loss during testing and storage. The 140-inch PU spring wire is lightweight, durable, and flexible, making it easy to handle in hard-to-reach areas. The large alligator clip enables one-handed operation for effortless testing. 2. Efficient Voltage Testing This bidirectional voltage tester allows for easy attachment to either the negative ground or positive pole. The dual LED indicators provide clear polarity signals; a red light signifies positive voltage, while a green light indicates negative. The tester also features distinct buzzing sounds to further distinguish voltage direction. 3. Versatile Testing Range With a voltage testing range of 3-72V DC, this automotive circuit tester surpasses typical 48/60V models. It is perfect for diagnosing various vehicle electrical systems, including headlights, taillights, turn signals, faulty sockets, and fuse connections. This tool is also suitable for general 3-72V DC wiring applications. 4. Accurate Digital Readout Stay confident in your readings with the clear, bright LED display, offering a resolution of .1V for precise voltage assessments. The LED design ensures visibility in both daylight and darkness, while being more secure and burn-resistant compared to traditional bulb testers, making it safe for automotive computer systems. Practical Applications: - Use it to troubleshoot automotive circuits, ensuring headlights and taillights function correctly. - Test power supply integrity in various home or vehicle DC wiring projects. - Diagnose electrical issues in motorcycles and other vehicles with 3-72V DC systems. This automotive circuit tester is an essential tool for anyone looking to streamline their voltage testing process with precision and ease.