Car Circuit Tester Pen-Digital Voltage Test Tool with LED Display & Buzzer

Key Features

• Wide Voltage Testing Range (0.8 - 100V) This car circuit tester pen works with DC 0.8 - 100V and AC up to 300V, making it ideal for testing car batteries, fuses, wiring, and electrical components. Whether you're checking a 12V car battery or diagnosing a 220V AC issue, this tool has you covered.
• Digital LCD Display + Buzzer Alarm The clear LCD screen shows voltage readings at a glance, while the buzzer alarm sounds when continuity is detected (great for quick circuit checks). No more squinting at analog meters - get instant, easy-to-read results.
• Built-in Flashlight for Dark Areas Equipped with a bright LED flashlight, this tester lets you work in dim engine bays or dark corners. Illuminate fuse boxes, wiring harnesses, or tight spaces to ensure accurate testing, even in low-light conditions.
• Smart Mode & Automatic Detection In Smart Mode, the tester automatically recognizes and measures DC voltage, AC voltage, and continuity. Just touch the probe to a component - no complicated settings or manual mode switching needed.
• Versatile for Vehicle & Electrical Repairs Perfect for diagnosing common car issues like:

Fog lights, headlights, or taillights not working.

Horn, radio, or air conditioning failures.

Ignition, navigation, or power window problems.

Also works for motorcycle, boat, or small engine electrical systems.

Why You'll Love It

• Save Time on Diagnostics Quickly identify blown fuses, short circuits, or voltage drops without guesswork. The digital display and buzzer let you pinpoint issues in seconds, not hours.
• Safe & Easy to Use The pen-style design fits comfortably in your hand, and the insulated probe prevents accidental shocks. Ideal for DIYers or professionals who want a hassle-free testing experience.
• All - in - One Tool for Electrical Work Combine voltage testing, continuity checking, and flashlight functionality into one compact tool. Keep it in your car, garage, or toolbox for instant electrical troubleshooting.

Specifications

Voltage Range: DC 0.8 - 100V, AC up to 300V.

Display: LCD screen with green backlight.

Features: Buzzer alarm, built-in flashlight, smart automatic detection.

Applications: Cars, motorcycles, boats, small engines, household wiring.

What's in the box
1 × Car Circuit Tester Pen
1 × Ground Clamp
1 × User Manual
1 × 7# Battery
1 × Storage Pouch