6V-24V Car Truck Voltage Circuit Tester Digital Display Long Probe Pen Electric

Find Car Electrical Problems with a Voltage Tester

This digital voltage circuit tester helps you find electrical problems in your car. It works on 6V to 24V vehicles. The digital screen shows the voltage number. Lights tell you if the power is positive or negative. It is a must-have tool for every car owner.

Why This Circuit Tester is Useful

• Easy to Read: The digital display shows the exact voltage number. You do not have to guess. A green light means positive power. A red light means negative power.
• Long Reach: It comes with a very long 1.8 meter cable. You can reach deep into your engine bay without trouble.
• Strong and Safe: The probe is sharp stainless steel. The body is strong ABS plastic. It has an insulation cover to protect you from electric shock.
• Fits Many Vehicles: Works on cars, trucks, and bikes. It tests 6V, 12V, and 24V electrical systems perfectly.
• Finds Problems Fast: Use it to check headlights, taillights, fuses, and wiring. Find electrical faults in minutes.

How to Use Your New Tester

Clip the black clip to the negative battery terminal. Touch the sharp probe to the wire you want to test. The screen will show the voltage. A green light means everything is good. If you see a red light, it means you have a wiring problem. It is that simple. For other car tools, see our automotive tools section.

Questions People Ask

What vehicles does this tester work on?

It works on all 6V, 12V, and 24V vehicles. This includes most cars, trucks, motorcycles, and caravans.

Is it safe to use?

Yes. It has a strong insulation cover to protect your hands. The circuit board has protection to prevent damage.

How long is the cable?

The cable is 1.8 meters long. This is long enough to reach anywhere in your engine bay comfortably.