1 Piece 3-48V Automotive Circuit Tester with Voltmeter, Heavy-Duty LED Backlit Display Test Lamp, Bidirectional DC Voltage Tester, Electric Light Test Pen

Accurate LED Digital Display: The probe set circuit tester is equipped with an LED digital voltage display, which can accurately read the voltage. Measurement Range: DC 3-48V

Bidirectional Current and Voltage Test Mode: You can connect the alligator clips to either negative or positive ground. The red LED indicates the positive terminal, and the green LED indicates the negative terminal. Accurate readings are provided both during the day and in dark areas.

Safe and Durable: Equipped with pure copper terminals and an insulating protective cover, which better secures the housing and screws, this high-performance automotive circuit tester offers insulation protection to prevent electric shock. The board has a circuit protection function, making it safer and more resistant to burns.

Easy to Use: Connect the alligator clips to ground, then use the probes to test the circuit. The sharp steel probes easily penetrate the insulation to check the Circuits, find broken wires and current, check fuses, light heads and current, quickly and easily find

Wide Application: Can be used to detect current and ground and find short circuits and breaks in wires. Quickly check car headlights, taillights, turn signal circuits, faulty sockets, connectors, fuses, broken cables and more