AUTOOL BT160 is a simple and practical test tool. Simply connect the clips to the car battery and you can quickly identify the positive and negative of the circuit, continuity, grounding status, and short-circuit tracking. Three-year warranty, lifetime maintanence. 1.【Strong Performance】The unit is the best electrical tester to reduce the diagnostic time in automotive electrical systems.for Vehicle/Boat/Motorcycle/Heavy Duty/Truck Electric Voltage Integrated Power Scanner 2.【Application Range】ca