VM-1 Digital Voltmeter

Harrison Labs VM-1 Digital Voltmeter | Made in USA 12V LED Battery Monitor

The Harrison Labs VM-1 is a high-precision 3-1/2 digit LED digital panel meter engineered for elite car audio, marine, and industrial electrical systems. Made in the USA, this professional 12V voltmeter provides ultra-accurate, real-time voltage monitoring with a high-visibility 0.6” LED display.

Technical Specifications:

• Core Function: 12V Battery Monitor, Alternator Voltage Tracker, Marine Power Systems.

• Adjustable Ranges: Solder-jumper configurable for 0-19.99V (Standard), 199.9V, and 299.9V DC/AC.

• Isolated Circuitry: Integrated isolated power supply prevents ground loop interference and signal noise.

• Multi-Function Support: Modular M-Series backboards enable True RMS AC, Amperage, and 500Hz Frequency tracking.

• Precision Accuracy: Rated at ±1% full-scale accuracy for professional-grade electrical diagnostics.

• Physical Build: 2” x 3” faceplate with a smoked bezel for flush-mount dashboard integration.

The Professional Choice for Electrical Management

As the premier Made in America voltmeter, the Harrison Labs VM-1 is the gold standard for enthusiasts demanding crisp, precise hardware data. Whether you are optimizing a high-output alternator or a custom solar array, the VM-1 delivers the reliability and low-drift performance required for critical power management.