1.Power Detection: Car fuse tester conducts professional online testing for 6V 12V 24V automotive electronic control systems, whether it is detecting short circuits and open circuits in power supply, grounding and wires, or quickly checking the vehicle's headlights, taillights, turn signal circuits, etc. Fuse tester can pinpoint the problem. 2.Bidirectional Voltage Test: The circuit tester design is convenient and simple, and it can be easily connected to ground with either the negative or positive pole. The test light has a digital display function, allowing you to see the test voltage results more clearly, providing a more convenient use experience, and the circuit tester is intuitive and accurate. 3.Quality and Durable Materials: Circuit tester is made of plastic and carbon steel. The handle is made of reinforced plastic, which provides a good grip and antislip insulation effect. The fuse tester's extended spring wire makes the operation more stable and reliable. 4.Flexible and EasytoUse Design: Considering that the detection of automobile circuits often requires access to areas that are difficult to diagnose, a stretchable long cable and probe design are specially adopted, so that the fuse tester can conduct accurate tests even in hardtoreach corners. The test light tail line antibend design prevents poor contact in the line.