AutoMeter Cobalt 52mm Digital Voltmeter

2010–2025 Vehicles with 12V or 16V Negative Ground Electrical Systems

Part #: 6391

Overview

The AutoMeter Cobalt 52mm Digital Voltmeter is an essential gauge for automotive enthusiasts and professionals who want to keep a close eye on their vehicle's electrical system. Designed for both street and race applications, this high-precision digital voltmeter provides real-time voltage readings, ensuring your electrical system is operating within optimal parameters. Whether you're tuning a performance build, monitoring a daily driver, or managing a race car, this voltmeter offers the accuracy and reliability you need to maintain electrical health and prevent potential issues.

With its sleek Cobalt blue LED display and compact 52mm size, this gauge seamlessly integrates into your dashboard or instrument cluster. Its straightforward installation and precise measurement capabilities make it an ideal choice for anyone looking to enhance their vehicle's monitoring system without sacrificing style or functionality. The AutoMeter Cobalt Digital Voltmeter helps you stay informed about your vehicle's electrical output, supporting peace of mind and optimal performance.

Key Features

The AutoMeter Cobalt 52mm Digital Voltmeter is packed with features that combine advanced technology with user-friendly design:

• High-precision digital stepper motor ensures accurate voltage readings down to a tenth of a volt, providing detailed insight into your electrical system.
• Compatible with 12V and 16V negative ground electrical systems, making it suitable for a wide range of vehicles, from daily drivers to race cars.
• Operating voltage range of 8 to 19 volts, allowing reliable monitoring across various electrical conditions and system loads.
• Race-proven design with durable construction, ensuring long-lasting performance even in demanding environments.
• Bright Cobalt blue LED display enhances visibility in all lighting conditions, adding a stylish touch to your dashboard.
• Plug-in wiring harness included for quick and straightforward installation, reducing setup time and complexity.
• Designed for universal fitment, suitable for nearly every street and race vehicle with negative ground electrical systems.
• Compact 52mm size fits standard gauge openings, making it easy to integrate into existing instrument clusters or custom panels.
• Low power consumption and reliable operation, supporting your vehicle’s electrical health without draining your battery.

Construction & Design

The AutoMeter Cobalt Digital Voltmeter features a robust construction with a durable housing designed to withstand the rigors of automotive environments. Its high-quality digital stepper motor ensures precise needle movement and accurate readings, while the bright LED display provides excellent visibility in daylight or nighttime conditions. The compact 52mm diameter allows for versatile installation options, whether in a dedicated gauge pod or integrated into a custom dash setup.

The gauge’s design emphasizes both style and function, with a sleek Cobalt blue backlit display that complements modern interior aesthetics. The included plug-in wiring harness simplifies installation, enabling a clean and secure connection to your vehicle’s electrical system. Built to automotive standards, this voltmeter is resistant to vibration, heat, and other harsh conditions encountered on the road or track.

Installation & Fitment

The AutoMeter Cobalt 52mm Digital Voltmeter is designed for easy, bolt-on installation. It uses a standard 52mm gauge size compatible with most vehicle dashboards and instrument panels. The included plug-in wiring harness allows for quick connection to your vehicle’s electrical system, with no cutting or splicing required in most cases. Simply connect the harness to your vehicle’s power and ground, mount the gauge in a suitable location, and you’re ready to monitor your electrical system in real time. No tuning or calibration is necessary, making it a hassle-free upgrade for any vehicle.

• Plug-and-play installation with included wiring harness
• Compatible with 12V and 16V negative ground systems
• No cutting, drilling, or complex wiring required in most applications

What's Included

• AutoMeter Cobalt 52mm Digital Voltmeter
• Plug-in wiring harness
• Mounting hardware and instructions

Ideal For

• Performance enthusiasts monitoring electrical health during spirited driving or racing
• Daily drivers seeking reliable voltage readings to prevent electrical issues
• Custom dashboard builds and race cars requiring precise, real-time electrical monitoring