Monnit ALTA Industrial Wireless AC Current Meter - 150 Amp (900 MHz)

The Monnit ALTA Industrial Wireless AC Current Meter is engineered for rugged facilities that demand precise, scalable current monitoring without the complexity of hard-wired sensors. Designed around a dependable current transformer (CT) clamp, this 150 Amp model captures true RMS current in an AC system by looping around the hot conductor in a two-wire power setup. It delivers critical load insights directly to your Monnit gateway or cloud-based software, enabling proactive energy management, improved system protection, and smarter capacity planning in manufacturing floors, data centers, warehouses, and commercial spaces. With ALTA’s wireless capabilities at 900 MHz, you can deploy multiple meters across your site and centralize data without running miles of cabling. The result is real-time visibility into how your electrical infrastructure is performing, so you can optimize energy use, reduce downtime, and extend equipment life.

• Accurate RMS current measurement via CT clamp — The ALTA meter uses a current transformer that securely wraps around the hot wire of a two-wire system, capturing true RMS current to deliver reliable load data. By focusing on RMS values, it provides meaningful insights into real operating conditions, helping you identify peak loads and optimize energy usage.
• Wireless data transmission at 900 MHz — Once connected, the meter transmits live current data to your Monnit gateway or cloud solution without the need for wired data lines. This wireless capability simplifies installation, scales across facilities, and enables centralized monitoring of all installed meters from a single interface.
• Up to 150 A measurement range — Designed for typical facility circuits and load profiles, this model accurately measures currents up to 150 Amps. It’s well-suited for motors, pumps, HVAC equipment, transformers, and other industrial loads where precise current profiling matters.
• Key RMS readings for analytics — The sensor reports Minimum RMS current, Maximum RMS current, and Average RMS current, providing essential data for energy analytics, peak load analysis, and protection strategies. Use these metrics to trend usage, detect anomalies, and verify equipment efficiency.
• Rugged, easy-to-deploy design for industrial environments — Built to handle demanding facilities, the ALTA current meter integrates seamlessly with Monnit’s ecosystem, offering a straightforward installation flow and reliable wireless operation that minimizes downtime during deployment and expansion.

Technical Details of Monnit ALTA Industrial Wireless AC Current Meter - 150 Amp (900 MHz)

• Measurement method: RMS current is detected via a current transformer (CT) clamp that encircles the hot conductor of a two-wire AC power system.
• Current range: Capable of measuring up to 150 Amps, making it suitable for a wide range of industrial loads and electrical circuits.
• Wireless technology: Operates on the 900 MHz band to transmit data to the Monnit ALTA gateway or cloud platform, enabling scalable, multi-point monitoring across large facilities.
• Reported values: Provides Minimum RMS current, Maximum RMS current, and Average RMS current for precise load profiling and trend analysis.
• Installation and integration: Designed to work with Monnit’s ALTA ecosystem, allowing straightforward pairing with gateways and centralized data visualization, alerts, and reporting.
• Application scope: Ideal for industrial environments where non-intrusive, wireless monitoring of AC currents is essential for energy management, equipment protection, and operational efficiency.

how to install Monnit ALTA

• Plan the installation — Identify the circuit you want to monitor and ensure power is safely de-energized before placing the CT clamp around the hot conductor. Confirm that the target wiring matches a two-wire configuration (hot and common; ground may be present optionally).
• Mount the ALTA meter and CT — Secure the Monnit ALTA device in a location with good air circulation and minimal vibration. Place the CT clamp around the exposed hot wire, ensuring the conductor passes through the center of the clamp for accurate readings. Use the provided fasteners or mounting hardware as recommended by the installer guide.
• Connect to power and gateway — If the ALTA unit requires a local power source, connect it according to the manual. Pair the ALTA meter with your Monnit gateway by following the pairing procedure (typically via the gateway’s provisioning interface or software). Ensure the gateway is within range of the device’s 900 MHz transmission.
• Configure in software — Once paired, configure the polling interval and data reporting preferences in your Monnit dashboard. Set up any alerts for abnormal current levels, load thresholds, or sustained deviations to stay ahead of potential failures or energy waste.
• Test and verify — Energize the circuit and verify that the ALTA meter is transmitting data correctly to the gateway. Check that the Minimum, Maximum, and Average RMS current readings appear in the dashboard, and confirm that alerts trigger as configured.

Frequently asked questions

Q: What does the Monnit ALTA Industrial Wireless AC Current Meter measure?

The ALTA meter measures the RMS current of an AC system through a current transformer clamp that surrounds the hot conductor of a two-wire circuit. It reports minimum, maximum, and average RMS current values to support load profiling, energy analytics, and protection planning.

Q: How is the data transmitted and where does it go?

Data is transmitted wirelessly at 900 MHz to a Monnit ALTA gateway, which then forwards measurements to the Monnit cloud or your configured software environment. This enables real-time monitoring, historical trending, and centralized reporting across multiple meters.

Q: What installations scenarios is this meter best suited for?

Ideal for industrial facilities such as manufacturing floors, data centers, warehouses, and mechanical rooms where non-intrusive, wireless current monitoring helps optimize energy use, prevent equipment overload, and support predictive maintenance.

Q: Can I monitor multiple meters and scale the system?

Yes. The ALTA platform is designed for scalable deployments. You can install multiple ALTA meters around your facility and aggregate data in a single dashboard for comprehensive visibility, alerts, and reporting across all monitored circuits.

Q: What maintenance is required?

Maintenance for the ALTA current meter is minimal. Regular software/configuration checks in the Monnit dashboard are recommended to ensure data integrity and alert accuracy. Periodic physical inspection of the CT clamp and mounting hardware is advised to prevent loosening or wear in harsh environments.