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

General description The 3-36V Automotive Circuit Tester Pen is an essential tool for checking various vehicle electrical circuits, including automotive headlights, taillights, turn signals, faulty sockets, and fuse connections. It is also suitable for testing other 3-36V wiring and circuits. The tester features clear LED indicators to determine battery polarity and a precise digital display for accurate voltage readings. Technical specifications Voltage test range: 3-36V Voltage reading resolution: 1V Accuracy: ±0.2V Probe material: Pure copper Usage Use the 3-position switch to stop, judge the positive and negative poles of the battery, and test the voltage. The red LED indicates a positive power supply, while the green LED indicates a negative power supply. Other information Insulated fuselage for safe operation. Extended TPU spring wire for flexibility and easy storage. Pure copper alligator clip for a firm grip and convenience.