??CIRCUIT TESTER??The PS100 Autel circuit tester automotive tool will test the positive, negative, and open circuit easliy, also testing for continuity, diagnosing circuit failures, checking good and bad grounds, activating components on and off the vehicle, sensing MIN /MAX voltage, etc.??ELECTRICAL TESTER??PS100 electrical tester can easy to read AVOmeter, so you can easily use your fingers to control powerscan diagnosis of DC Voltage, AC Voltage, Resistance and Diode of 12v-24v electrical systems.??FLASHLIGHT?? Built-in Flashlight enables you to work in the dark. Even in a dark environment where you can’t see clearly, PS100 fuse tester automotive kit can give you a good view.??PROTECT YOUR VEHICLE??Autel powerscan can immediately check for bad ground contacts and quickly track down shorts without losing fuses. Also, the unit provides higher safety for the user, as it is protected by a circuit breaker, which is a safe measure to protect the unit and your components from overload.??LONG CABLE??The PS100 powerscan circuit tester contain 20ft (extendable) cable provides excellent accessibility to test along the vehicle.??POWER SWITCH?? With a flip of the power switch, you have an instant hot/ground lead for powering up electrical components like cooling fans, relays, testing fuses etc.