VM-1 Digital Voltmeter

🇺🇸 MADE IN THE USA 🇺🇸

Hlabs VM-1 Digital Voltmeter | High-Precision Marine & Automotive Power Monitor

The Hlabs VM-1 is a professional-grade digital instrument engineered to replace unreliable analog gauges with laboratory-level precision. Built specifically for yacht power generators, standby power systems, and high-performance automotive electrical systems, the VM-1 provides the real-time data accuracy required to protect sensitive electronics and high-output amplifiers.

Professional Engineering & Accuracy

• High-Visibility Readout: Features a large 3.5-digit display with 0.6” high digits for clear visibility in marine or vehicle cabins.

• Precision Performance: Engineered for ± 1% full-scale accuracy with a low-drift design for consistent monitoring.

• True RMS Sensing: AC-specific models utilize True RMS technology to accurately measure complex power waveforms.

• Customizable Scale: Easily adjust scale ranges and decimal points via simple internal jumpers.

• Heavy-Duty Aesthetic: Includes a premium smoked bezel mounting plate (approx. 2” x 3”) for a flush-mount, high-end engineering look.

Technical Specifications

• Operating Voltage: 11.0 to 14.7 VDC.

• Current Draw: 250 to 350 milliamps.

• Input Protection: Fully isolated power supply to eliminate ground loop interference.

• Display Colors: Available in Red, White, or Blue.

• Manufacturing: Made in USA by Harrison Laboratories.

Why Hlabs?

Since 1979, Harrison Laboratories has set the standard for high-end audio and electrical components. The VM-1 reflects this legacy, offering a rugged, maintenance-free solution for professionals who demand American-made reliability in their automotive and marine power systems.