- Short circuit protection: The circuit tester includes a short circuit protection function that can detect poor grounding immediately. - Wide range of applications: The power sensor tests conductivity and tests voltage polarity. It can detect lights, motors, trace and locate short circuits. This helps quickly identify if there is a short circuit or poor contact in the vehicle's electrical system components. - Test cable length: The cable is approximately 16 feet long, making it easy to test any electrical system. - Simple operation: After connecting the circuit tester to the vehicle battery, the auto technician can conduct the positive and negative current of the battery to the probe by moving the power switch forward or backward. Use scenarios - Automotive electrical troubleshooting: diagnose intermittent lighting or accessory failures, locate shorts or ground faults in wiring harnesses. - Wiring installation and verification: verify polarity and continuity when adding new components or modifying circuits in a vehicle. - Fault tracing in battery circuits: quickly identify poor connections or shorts in battery-related wiring and components.