Industrial Wireless AC Current Meters – Single & Three-Phase (20A to 500A)

The ALTA® Wireless AC Current Meters and Industrial Three-Phase Current Meters provide continuous monitoring of AC RMS current in single-phase or three-phase systems. Designed for commercial and industrial energy monitoring, these sensors use clip-on current transformers (CTs) to measure electrical flow without disrupting power lines.

Choose from three current ranges to match your application:

• 0–20 Amp

• 0–150 Amp

• 0–500 Amp

The sensors capture Minimum, Maximum, and Average Amp-RMS, along with accumulated Amp-hours for energy consumption tracking. With selectable CT sizes and detachable leads (standard with 150A and 500A models), these sensors are ideal for energy management, load balancing, and predictive maintenance.

⚠️ Note: Requires a Monnit gateway and may require software. Visit our Gateway & Software section or explore our ready-to-use kits.

Key Features:

• Supports single-phase and three-phase AC monitoring

• Available CT sizes: 0–20A, 0–150A, 0–500A

• Measures: Minimum, Maximum, and Average Amp-RMS

• Tracks Amp-hour accumulation for energy usage

• Accuracy: ±2% (typical uncalibrated), ±1% (calibrated)

• Resolution: 0.1 to 0.3 Amp-RMS

• Configurable thresholds for alert-based monitoring

• Industrial models (150A/500A) include detachable leads

Applications:

• Industrial energy usage tracking

• Load monitoring for HVAC, pumps, and motors

• Power consumption analysis in buildings or plants

• Predictive maintenance and downtime prevention

• Submetering and electrical diagnostics