ZKTOOL Power Circuit Probe Tester Tester Light 6V-24V DC Tools Component Activation Electrical Tester Polarity Identify Continuity Tester with Indicator Light,Long Probe, Alligator Clip.

The ZKTOOL Automotive Circuit Tester is a versatile and essential tool for any car enthusiast or professional mechanic.

With its ability to test polarity, continuity of relays and diodes, fuses and circuits, check lights, check motors, track and locate short circuits, test for poor grounding, test the polarity of cables and plugs, and measure 2V to 24V DC Voltage, this tool has everything you need to diagnose and repair any electrical issue in your vehicle.

The green light on the LED indicates contact with the negative electrode, while the red light indicates contact with the positive electrode.

Additionally, the product can test different parts of the vehicle, making it a must-have for anyone looking to keep their car in top condition.