Monnit ALTA Wireless AC Current Meter - 150 AMP - AA Battery Powered

The Monnit ALTA Wireless AC Current Meter is a compact, battery-powered solution designed for reliable, non-intrusive monitoring of AC electrical systems. By encasing a current transformer (CT) around the hot conductor of a two-wire (hot, common, ground optional) circuit, this meter captures the true RMS current with minimal intrusion and no interruption to your power supply. Built for flexibility and scale, the ALTA meter communicates wirelessly to your Monnit network, delivering real-time visibility and historical insights across small facilities or large campuses. With a maximum current rating of 150 amps, it’s well suited for dimming systems, HVAC circuits, data center feeds, manufacturing lines, and other critical loads where understanding electrical demand matters.

• Non-intrusive RMS current measurement up to 150 A — The ALTA current meter uses a current transformer clamped around the hot conductor to capture RMS current without opening the circuit. This non-contact approach protects personnel and equipment while providing accurate, representative readings across a wide range of loads. Ideal for monitoring feeders, panels, and individual machines, the sensor delivers dependable current data that helps you optimize energy use and prevent overloads.
• Min, max, and average RMS current reporting — Beyond the instantaneous current, the ALTA meter records essential statistics over the monitoring window: minimum RMS current, maximum RMS current, and the average RMS current. This trio of metrics makes it easier to spot idle versus peak periods, validate capacity planning, and pinpoint unusual loading patterns that could indicate faults or inefficiencies. With these data points, you can build richer load profiles and drive data-informed decisions.
• AA battery powered for flexible deployment — No external power supply or wiring is required. The AA battery-powered design enables placement wherever it provides the most value—inside electrical cabinets, on equipment housings, or alongside circuit panels—without altering the electrical infrastructure. Battery-powered operation reduces installation time and keeps wiring to a minimum, while maintaining continuous data streaming to your monitoring platform.
• Wireless connectivity for scalable monitoring — The ALTA meter communicates wirelessly with Monnit gateways and the cloud, enabling scalable, multi-site monitoring from a single dashboard. Real-time readings roll in on configurable intervals, and data can be correlated with other Monnit sensors to build a holistic view of building or facility energy performance. This wireless approach simplifies installation, reduces maintenance, and supports growing monitoring needs as facilities expand.
• Compact, rugged, easy-install design — Engineered for practicality, the ALTA current meter features a compact form factor and a clamp-on CT that eases installation in crowded electrical spaces. Its robust build is designed to withstand typical facility environments, enabling reliable operation behind panels or on equipment housings. The non-invasive sensing method means you can deploy quickly without modifying existing circuits, minimizing downtime during installation and upgrades.

Technical Details of Monnit ALTA Wireless AC Current Meter - 150 AMP - AA Battery Powered

• Current measurement: RMS AC current up to 150 A (via current transformer clamp around the hot conductor).
• Sensor type: Clamp-on current transformer (CT) for non-contact current measurement.
• Power source: AA batteries (battery-powered design) for flexible, wire-free installation.
• Wireless communication: Monnit wireless connectivity to the cloud or gateway for remote monitoring.
• Reported data: Minimum RMS current, maximum RMS current, and average RMS current over the monitoring interval.
• Deployment considerations: Compact enclosure designed for mounting near electrical panels or equipment housings, enabling quick installation with minimal wiring.
• System integration: Designed to be part of the Monnit ALTA family and compatible with Monnit’s cloud platform for centralized data visualization and management.

how to install Monnit ALTA Wireless AC Current Meter

Install this meter without disrupting service by following a simple, clamp-on approach. Step 1: Power down the relevant circuit and identify the hot conductor that feeds the load you want to monitor. Step 2: Open the clamp-on current transformer and position it around the hot wire, ensuring the conductor is centered within the CT and oriented according to the device’s directional markings. Step 3: Insert fresh AA batteries into the sensor housing to power the unit. Step 4: Reassemble the housing, power on the device, and allow it to establish wireless communication with your Monnit gateway or cloud account. Step 5: In the Monnit dashboard, add the new meter, assign it to a location, and configure sampling intervals and data retention. Step 6: Validate readings by comparing live data against known loads, then resume normal operation. The entire process is designed to minimize downtime and avoid any changes to the electrical circuit beyond the CT clamp placement.

Frequently asked questions

• What does the Monnit ALTA Wireless AC Current Meter measure? It measures the RMS current on AC circuits using a current transformer clamp around the hot conductor and reports the instantaneous RMS value along with minimum, maximum, and average RMS currents over time, for circuits up to 150 A.
• How is the device powered? It is powered by standard AA batteries, enabling flexible placement without the need for external power wiring.
• How does it connect to monitoring systems? The device uses wireless communication to the Monnit gateway and cloud platform, providing real-time data access from any connected device.
• What installation is required? A simple, non-invasive installation using a clamp-on CT around the hot conductor; no cutting or splicing of wires is necessary. After mounting, pair the sensor with your Monnit account and configure data collection settings.
• What data can I expect to see? You’ll receive instantaneous RMS current readings plus historical min, max, and average RMS current data, which you can visualize over time in the Monnit dashboard to identify trends and anomalies.