Collection: TopDiag Circuit Tester

Ensure the optimal functioning of your vehicle's electrical system with our Power Circuit Probe Kit. This versatile tool is designed for testing automobile battery voltage, assessing AC and DC voltages, measuring resistance, and pinpointing circuit system issues such as leakage, short circuits, and overload protection on components. Equipped with a larger battery clip, our auto circuit tester can handle substantial loads, making the testing process more efficient. It supports a broad input voltage range from 9V to 70V, catering to both 12V vehicles and 24V trucks.