Multi Function Testing: This tester can be used as an aid in daily repair of the car and maintenance. It can be used to trace faults, locate short circuits, polarity testing. Continuity test and ground check. Simply understood as determining the polarity and line on/off condition through the LED dual-color display

Easy to Use: Connect the red clip to the positive terminal of the battery and the black clip to the negative terminal of the battery, press the positive button upwards and the LED will light up red, connect the probe to the positive terminal of the component. If the LED turns green and the buzzer sounds, stop the test and check the component for defects

Continuity Test: The continuity test is primarily a test of whether the circuit is connected or not. After properly connecting the circuit tester, connect the auxiliary ground wire to one side of the test lead and the tip of the probe to the other side. When continuously energized, the LED is green. If the LED does not light up, it is disconnected

NOTE: Best used for 12V 24V DC lines (not larger than 24V), not for AC. Overload protection: Maximum current is 7A. Please read the instruction manual before use

Longer Cable and Overload Protection: The tester is equipped with a 13.1 FT cord to provide more operating space. When the current exceeds 7A, it will automatically cut off the current and have a buzzer warning