The New ALTA® Wireless 0–20 VDC Interface Volt Meter

ALTA Wireless 0-20 VDC Interface Volt Meter monitors equipment voltage

Gain Real-Time Visibility into Higher-Voltage Equipment to Reduce Downtime, Improve Reliability, and Make Smarter Maintenance Decisions

Every day, industrial facilities, commercial buildings, and OEM equipment rely on communication through DC voltage signals. 12 V batteries, transducers, small motors, control panels, PLC outputs, and process instrumentation all provide valuable information about equipment health. But unless someone is actively measuring those signals, developing problems often go unnoticed until they cause downtime.

Monnit's new ALTA® Wireless 0–20 VDC Interface Volt Meter changes that by making voltage monitoring simple, wireless, and actionable. It measures potential differences up to 20 VDC between two electrical points and sends data remotely.

Instead of performing periodic manual measurements or waiting for equipment to fail, maintenance teams can continuously monitor voltage trends, receive instant alerts when conditions change, and make informed maintenance decisions before minor issues become costly failures.

Why Voltage Monitoring Matters

Voltage is one of the simplest, and often most overlooked, indicators of equipment health. Unexpected voltage fluctuations can signal a variety of developing problems, including:

  • Battery degradation
  • Power supply issues
  • Sensor or transducer faults
  • Motor performance problems
  • Wiring issues
  • Electrical component failures
  • Control system abnormalities

By monitoring these changes continuously, you gain early warning of problems that might otherwise remain hidden until equipment performance is affected.

Rather than reacting to failures, maintenance personnel can schedule repairs proactively, reducing emergency service calls, minimizing downtime, and improving equipment reliability.

Retrofit Existing Equipment in Minutes

Voltage monitoring helps detect equipment issues before downtime occurs

One of the greatest advantages of the ALTA Wireless 0–20 VDC Interface Volt Meter is how easily it integrates with existing equipment.

Installation typically takes about 15 minutes by connecting the sensor to the power and ground of compatible DC-powered equipment. Once installed, the sensor begins transmitting voltage measurements through a Monnit ALTA or ALTA XL® Gateway to iMonnit, where you can monitor data, configure alerts, review trends, and generate reports from virtually anywhere.

If measured voltage moves outside your defined thresholds, you can immediately notify designated personnel via push notification, email, SMS text message, and voice call. This enables predictive maintenance teams to respond before small issues become expensive downtime.

Turn "Dumb" Equipment into Smart Assets

Many industrial assets already generate valuable electrical signals, but they simply aren't connected to a monitoring system. With the ALTA Wireless 0–20 VDC Interface Volt Meter, you can add remote monitoring to existing equipment without replacing controls or investing in costly automation upgrades.

Typical monitoring applications include:

  • Industrial analog sensors
  • 12 V and backup battery systems
  • Automation equipment
  • PLC and control system outputs
  • Process instrumentation
  • Renewable energy equipment
  • DC electric motors
  • Manufacturing machinery
  • OEM equipment
  • Remote electrical assets

Whether you're monitoring a single machine or hundreds of assets across multiple facilities, continuous voltage visibility helps improve maintenance planning and operational performance.

Voltage trend data supports predictive maintenance and faster alerts

Designed for Predictive Maintenance

Predictive maintenance starts with reliable data, and voltage is often one of the earliest indicators that something is changing. This new ALTA Sensor does far more than report voltage.

Using configurable Heartbeat Intervals, the sensor continuously measures the single-ended DC voltage across its input leads and securely transmits each measurement to iMonnit. Historical trend data allows maintenance teams to recognize gradual performance changes that may indicate developing electrical or mechanical issues long before they become failures. The sensor can also be calibrated after installation to improve measurement accuracy for demanding applications.

Key Features

  • Measures DC voltage from 0–20 VDC
  • Remote wireless monitoring through iMonnit
  • User-configurable alert thresholds
  • Email, push, text, and phone notifications
  • High-resolution voltage measurements
  • Optional calibration for improved accuracy
  • Battery-powered wireless operation
  • Multiple enclosure options
  • Typical installation in approximately 15 minutes

Like other Monnit ALTA Sensors, it also offers:

  • Wireless communication up to 2,000+ feet through 18+ walls, environment dependent
  • Frequency-Hopping Spread Spectrum (FHSS) communications
  • AES-128 encrypted wireless security
  • Automatic firmware over-the-air (FOTA) updates
  • Local data logging during gateway communication interruptions
  • Long battery life, with select models providing up to 10 years of operation depending on configuration and reporting interval.

Built for Virtually Any Environment

The ALTA Wireless 0–20 VDC Interface Volt Meter is available in multiple enclosure options to match virtually any application.

Choose from:

  • Compact commercial models
  • Enterprise-ready sensors
  • Industrial-grade NEMA-rated enclosures for demanding indoor and outdoor environments

For specialized equipment or unique sensing requirements, Monnit Labs can also develop custom solutions tailored to specific applications.

Gain the Power of Knowing Voltage

Voltage data is far more than a number. It provides insight into the health of your equipment and the efficiency of your operation.

With the ALTA Wireless 0–20 VDC Interface Volt Meter, organizations can transform existing electrical signals into actionable intelligence that helps:

  • Detect developing equipment issues earlier
  • Reduce unexpected downtime
  • Improve maintenance efficiency
  • Extend equipment life
  • Optimize operational performance
  • Support predictive maintenance initiatives

When you can see changing conditions before equipment fails, you can solve problems on your schedule, not during an emergency. The new ALTA Wireless 0–20 VDC Interface Volt Meter delivers that visibility, helping facilities make smarter maintenance decisions while protecting the equipment that keeps operations running.


About Monnit Corporation

The origin story of the Internet of Things (IoT) begins with Monnit. Before our inception in 2010, we were already at the forefront of embedding technology into machines and devices to enable them to talk and deliver valuable data to business leaders. Monnit Remote Monitoring Solutions for nearly any industry use case have delivered 72B+ data points in 130+ countries for 90K+ customers. Monnit's 80+ long-range IoT sensors remotely monitor many conditions such as temperature, light, humidity, water, vibration, pressure, and more. You can analyze data using iMonnit cloud software and get alerts via email, text, push notification, or call when our sensors detect a change you should know.

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