Car Circuit Tester DC 6V 12V 24V Automotive Truck Voltage Tester Circuit Probe Light System Test Probe Lamp Car Light Voltage Product features: 1. Designed to detect faults in low voltage circuits of traffic or transport machinery 2. Suitable for maintenance of automobiles, motorcycles, bulldozers, road rollers, excavators, etc. 3. Simple and practical tool to diagnose and troubleshoot electrical problems faster and easier than DMM (Digital Multimeter) 4. You can use it to check any positive circuit. If the fuse is good, you can use a circuit tester to trace the wiring path and find the problem. If the positive path is good, you can also check the ground point of the circuit with a test light. Product Specifications: Material: ABS+Steel, LED Size: (Approx.) Pen Length: 150mm, Line Length: 75cm Color: green Packing list: 1x car voltage test pen 1x Coil Cable