6V/12V/24V Automotive Circuit Tester – Car & Truck Voltage Diagnostic Test Pen

Quickly check electrical circuits and identify voltage with this Automotive Circuit Tester. Designed for vehicle diagnostics, this digital test pen features an LCD display, visual and audible alerts, and a pointed probe for convenient testing.

With support for a broad voltage range, it's a useful tool for checking automotive wiring, identifying live and neutral wires, and troubleshooting electrical connections.

Key Features

• Digital LCD Display — Clearly displays detected voltage and signal information.

• Wide Voltage Detection Range — Available in versions supporting approximately 5V–48V or 5V–120V.

• Sound & Light Alerts — Provides visual and audible indications during voltage detection.

• Live & Neutral Wire Detection — Helps distinguish between live and neutral wires based on detected voltage.

• Wire Continuity Testing — Useful for checking whether electrical connections are conducting properly.

• Real-Time Detection — Provides convenient electrical measurements during troubleshooting.

• Dual-Color Backlight — Green and red illumination makes the display easier to read.

• Pointed Probe — Cone-shaped probe allows convenient contact with electrical terminals and wiring.

• Portable Design — Compact test-pen format makes it easy to keep in a toolbox or vehicle.

• Battery Included — Ready to use with the included battery.

Specifications

• Product Type: Automotive Circuit Tester

• Voltage Detection: 5V–48V / 5V–120V (depending on version)

• Display: LCD Digital Display

• Probe: Cone-Shaped

• Backlight: Green & Red

• Alerts: Audible & Visual

• Continuity Testing: Yes

• Battery: Included

• Wireless: No

• Application: Automotive electrical diagnostics

Perfect For

A practical tool for car and truck electrical troubleshooting, wiring checks, circuit testing, and general automotive maintenance.

Quick voltage detection. Clear digital readings. Convenient automotive diagnostics.