3-36V Automotive Circuit Tester Pen, Car Test Lamp, Vehicle Voltage Tester, Determines Battery Positive and Negative, Auto Electrical Tester, Alligator Clip

General Description The 3-36V automotive circuit tester is an essential tool for checking various vehicle electrical circuits. It is designed to test components such as headlights, taillights, turn signals, and fuse connections. Thanks to its 3-36V test range, it is also useful for other low-voltage wiring and circuits. The red and green LED indicators make it easy to determine battery polarity. Technical Specifications Test Range: 3-36V DC Reading Resolution: 1V Accuracy: ±0.2V Pure Copper Probe: For superior conductivity Installation Use the 3-position switch to select the appropriate mode: Off, Polarity Test, Voltage Test. Operation To test battery polarity: The red LED indicates a positive supply, while the green LED indicates a negative supply. The pure copper probe allows for easy piercing of wires and access to hard-to-reach areas. Other Information The casing is insulated for safe operation. The TPU spring wire offers greater flexibility and is easy to store. The pure copper alligator clips ensure a firm and secure grip.