Power Analyzers for Power Quality, Harmonics & Energy Monitoring – Duncan Instruments – Duncan Instruments Canada Ltd

Power Analyzer

Measure, Analyze, and Optimize Electrical Power

At Duncan Instruments Canada, we offer one of the most comprehensive selections of power analyzers in the country. Whether you're measuring real power (W), energy consumption (kWh), or analyzing harmonics (THD), our multi-function analyzers deliver accurate, reliable results.

These devices can measure:

  • Direct and alternating current (DC/AC)
  • Voltage (DC/AC)
  • Apparent (VA), reactive (VAR), and true power (W)
  • Power factor (PF) and phase rotation
  • Harmonics (THD) and frequency (Hz)

Power analyzers calculate True RMS values by analyzing the full waveform across an AC cycle—ensuring accurate readings even under complex loads. They acquire data using voltage dividers and current transformers, then compute energy flow using precise mathematical models.

Where available, our pricing is automatically compared against major Canadian competitors to help you get the best deal—updated several times daily.

Browse our selection of over 35 models from trusted brands. Not sure which one fits your application? Contact us — our engineers are here to help.

31 products

Whether you're troubleshooting power quality issues or performing compliance measurements, choosing the right power analyzer is critical. At Duncan Instruments, we carry professional-grade analyzers from Infratek, Kyoritsu, and Metrel—trusted brands known for accuracy and durability.

From single-phase energy audits to advanced three-phase harmonic analysis, our instruments help engineers, technicians, and energy managers get the data they need—fast. Need Wi-Fi connectivity, power factor analysis, or logging capabilities? We’ve got you covered.

Our experts are here to guide you. Still not sure which model suits your application? Contact us for fast, knowledgeable help.