Automotive Circuit Tester is an equipment used to test the automotive electrical system within12 24 volts. In order to save the testing hours for the automotive electrical system, it is designed to testing the system without re-connection between the vehicle battery and the testing components.
Determine the polarity and circuit circumstance (short/ open)
Activating the components with positive or negative current without jumper wire
Testing the continuity of the circuit
Locate missing cylinders