2021’s Best Power Quality Analyzer Reviews [ Top 5 Models]

Written By Kim Goodwin

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After hours of research, we have finalized the Best Power Quality Analyzer that we found to excel in quality, price value, customer reviews, and durability among hundreds of models in the market today.

The power quality analyzers that can monetize the cost of energy wastes because they are poor.

Did you Know? Featuring, more powerful model options, greater accuracy, and larger memory make the Fluke 435-II Series of Power Quality Analyzers ideal for long-term, high-resolution or high-demand power quality studies.

The most important considerations that most, a wide range of analysis functions and estimation methods make it the perfect tool for both power quality troubleshooting and discovering energy savings.

Check our top list of Best Power Quality Analyzer to quickly pick the reliable option within a budget…

All these are power quality analyzer models, if you would like to check the best multifunction process calibrator, we have a separate post for that ranks all models irrespective of their operating type.

For more information click here (Source).

Table: 5 Best Power Quality Analyzer [2020]

Fluke 435-II Power Quality Analyzers
⇒Power Source: Corded-electric
⇒Temperature Range: 0/40 degrees celsius
⇒Measurement Accuracy: +/- 0.5 %
[ 4.8/5.0 ]
Hioki PW3198-01Power Quality Analyzer
⇒Power Source: Corded-electric
⇒Type (Power Quality): 3 Phase, Single Phase
⇒Works on: 50Hz/60Hz/400Hz systems
[ 4.6/5.0 ]
Fluke 434-II/BASIC Energy Analyzer
⇒Dimensions: 15.6 x 12.8 x 12.4 inches
⇒Power Source: Corded-electric
⇒Resolution: 0.1V
[ 4.5/5.0 ]
Extech 382100 Power Analyzer
⇒ACV (True rms): ±(0.5%rdg+0.5V)
⇒Power Source: corded-electric
⇒Current measurements: 1200A
[ 4.2/5.0 ]
Tongbao ETCR5000 Power Quality Analyzer
⇒Frequency: 40Hz~70Hz
⇒Material: Plastic
⇒Weight: 14.3 pounds
[ 4.1/5.0 ]

Best Power Quality Analyzer – 5 Models Reviewed [2020]

1. Fluke 435-II Series of Power Quality Analyzers

The 435-II power quality analyzer and Fluke 434-II energy analyzer as described in this classification are designed to help you quickly resolve power quality issues, reduce downtime and easily detect the cost of wasted energy.

Also, downtime is expensive and it is important to get the data you need to quickly solve important power quality issues.


  • Weight: 2.2 pounds
  • Dimensions: 15 x 12.3 x 12.9 inches
  • Power Source: Corded-electric
  • Temperature Range: 0/40 degrees_celsius
  • Measurement Accuracy: +/- 0.5 %

In general, many parameters are measured simultaneously and are shown in the appearances that describe overall energy quality health.

This picture shows how much money you lose due to energy waste based on real dollars
It shows how motor startups affecting motor drive performance
It is used to measure the total three phases and neutralize with the included flexible current probes

Energy Loss Calculator

  • The 435-II provides an advanced analysis of energy use to determine where energy losses occur and their impact on the energy bill.
  • Moreover, the energy loss calculator uses patented algorithms to monetize and calculate losses.
  • The costs due to effective W, reactive var, volatility VA, dissociation VA, and neutral A are shown per hour.

Advanced power quality health

  • In general, monitor mode provides a dashboard view of RMS voltage, flicker, interrupts, harmonics, rapid voltage change, swelling, imbalance, frequency and mains signal.

Auto Trend

  • This is an important function and with the unique auto trend feature, it gives you a quick glimpse of the changes over time.
  • Each reading displayed in this instance is recorded automatically and continuously without setting the threshold level or starting the process manually.
  • You can quickly view trends in all three phases of voltage, current, frequency, power, harmonics or flicker.

PowerWave Data Capture

  • The high-resolution waveform in these Powerwave recordings allows you to monitor the influence of voltage and sudden load changes on current waveforms.
  • For example, large voltage changes can indicate a weak power supply.

Furthermore, detailed explanations help you make better maintenance decisions, and whether you are trying to reduce energy waste, identify the source of power quality issues or see how motor startups are affected your electrical system.

On the other hand, the 435 Series II delivers the best in power quality analysis and introduces the ability to calibrate energy losses.

Did you Know? The new Fluke 435 Series II three-phase power quality and energy analyzer model in this classification helps detect, predict, prevent and troubleshoot power quality problems in three-phase and single-phase power supply systems.

2. Hioki PW3198-01/500 Pro 400Hz, Power Quality Analyzer

Hioki PW3198-01/500 Pro 400Hz portable power meters and analyzers are best in level control estimating instruments for estimating single to three-stage lines with a high level of exactness and precision.


  • Brand: Hioki
  • Weight: 22.8 pounds
  • Power Source: Corded-electric
  • Type (Power Quality): 3 Phase, Single Phase
  • Works on: 50Hz/60Hz/400Hz systems

The new and improved PW3198-01 is a power quality analyzer that can perform monitoring and recording in compliance with standard Class A IEC61000-4-30 for PQAs.

This Hioki power quality analyzer manages the parameters using control set points such as flicker, harmonic voltage, voltage fluctuation and more.

This device allows you to see the real power issues where the real issue is (for instance, reset, gear breakdown, overheating, consuming harm, failure or overheating) Works on 50Hz/60Hz/400Hz frameworks.

Manufacturer Specs: What Makes This Hioki Power Quality Analyzer Stand Out

1.Line type measurement2 wire single phase, 3 wire single phase, 3 wire three-phase or 4 wire three-phase + 1 input extra channel
2.Voltage rangesMeasurement of Voltage: 600.00 Volts rmsMeasurement of Transient: 6.0000 kiloVolts peak
3.Current ranges500.00 mill Amps – 5.0000 kiloAmps AC
4.Basic accuracyVoltage +/- 0.1 percent nominal voltageCurrent +/- 0.2 percent rdg. +/- 0.1percent f.s. plus accuracy of Current sensorActive power +/- 0.2 percent rdg. +/- 0.1percent f.s. plus accuracy of current sensor
5.Record55 weeks (w/ repeated recording settings at [1 Week] & 55 iterations)35 days (w/ repeated recording settings at [OFF])
6.InterfaceSDHC / SD card, RS-232C, USB2.0, LAN (HTTP server)
7.DisplayTFT 6.5″ color LCD (480 × 640 dots)
8.Power supplyZ1002 AC ADAPTER (12 Volts DC, Power supply rated at 100 to 24 Volts AC, 50 / 60 Hertz)Z1003 Ni-MH BATTERY PACK (7.2 Volts DC 4500 mAh)

Hioki PW3198 01 1000 PRO Power Quality Analyzer

Verify power control issues as per the IEC61000-4-30 Class-A standard

High accuracy and constant gapless recording (V: ±0.1% of normal voltage, A and W: ±0.2% rdg. ±0.1% f.s.)

CAT IV 600V – safe enough for approaching electrical cables

Broadband voltage ranges up to 80 kHz allows you to measure even higher-order harmonic components

Wide dynamic ranges from low voltages up to 1300V (3P4W line-to-line voltage)

The Max 6000V transient overvoltage up to 700kHz

LAN, USB and SD card interfaces

Optional GPS BOX for synchronizing numerous gadgets

Applications of Hioki Power Quality Analyzer

It can also perfect for troubleshooting:

  • Solar & Wind power generation network systems
  • EV charge stations
  • Tooling machines
  • Medical equipment
  • Electrical equipment
  • Server rooms

Used in preventive maintenance and field research:

  • Maintenance of electrical equipment
  • It also helps to monitor the operations of wind and solar power networks
  • It takes the study of electrical problems and long-term power quality measurement.

3. Fluke 434-II/BASIC Energy Analyzer

The Fluke 434-II BASIC energy analyzer is the ideal tool for energy monetization and advanced energy logging which is identifying the most energy wasteful areas of your facility.


  • Brand: Fluke
  • Weight: 11.02 pounds
  • Dimensions: 15.6 x 12.8 x 12.4 inches
  • Power Source: Corded-electric
  • Resolution: 0.1V

Power factor of the Fluke 434 Power quality analyzer

The Fluke 434-II BASIC energy analyzer is the ideal tool for energy monetization and advanced energy logging which is identifying the most energy wasteful areas of your facility.

This power quality analyzer can detect, prevent, predict and troubleshoot power quality issues in single-phase and three-phase power distribution systems. It helps to improve the efficiency of electro-mechanical equipment and to reduce electrical power consumption.

Number of voltage inputs4 (3 phase + neutral) DC-coupled
Nominal voltage range1V to 1000V
Maximum input voltage1000V RMS
Number of current inputs4 (3 phase + neutral) DC- or AC-coupled
Current input range0.5 to 600 amp RMS with included i430flex-TF
5 to 6000 amp RMS with included i430flex-TF
0.1mVA to 1VA & custom for use with optional AC or DC clamps
RMS sampling5000 samples on 10/12 cycles according to IEC61000-4-30
Power sourceRechargeable Li-ion battery BP290, power adapter

Moreover, this Fluke 434-II analyzer measures voltage, current, swells, interruptions, dips, harmonics, power, energy, frequency, inrush, and power inverter performance.

It not only calculates the monetary cost of poor power efficiency but also helps to pinpoint the origin of energy waste in a system.

Did you know? This Fluke 434-II/BASIC Energy Analyzer converts USB port and cable data to PC for trend and waveform data analysis in power lock software.

In general, RMS provides an overview of the performance of the live dashboard-style display power system of voltage, harmonics, flicker, interrupts, rapid voltage transitions, wells, fluctuations, frequency, and mains signaling.

It uses color-coded bars to show which parameters fall out of the limits.

It simultaneously measures the DC and AC power of a system to determine how much power is lost in the conversion process.

With this measurement, the analyzer can measure the efficiency of power inverters such as the solar generation system.

4. Extech 382100 1200A 3-Phase Power Analyzer/Datalogger

The previous model which we mention Fluke 434-II is definitely the best choice in power quality analyzer, but if you need a less price option there is another modal from Extech it is the Extech 382100.

In addition, the Extech 3-Phase Power Analyzer that saves 30,000 sets of data in an SD card in Excel format for easy conversion to your system.


  • Brand: Extech
  • Weight: 0.64 ounces
  • Dimensions: 2.8 x 2 x 2 inches
  • Power Source: corded-electric
  • Current measurements: 1200A

The notable feature of this Extech 382100 1200A 3-Phase Power Analyzer offers a full system analysis with up to 35 parameters such as V (phase-to-phase), V (phase-to-ground) – A (phase-to-ground), Displays active power(KW) / apparent power(KVA) / reactive power (KVAR) / power factor(PF), KW / KVA / KVAR / Power Factor (system), KWH / KVAH / KVARH / PFH (system), and Phase Angle.

Usually, all these measurements are displayed in large, backlit LCD, dot matrix and sun-readable.

SpecificationsRange    Basic Accuracy        
ACV (True RMS)600.0V±(0.5%rdg+0.5V)
Active Power (MW)9.999MW±(1.0%rdg+0.08KW)
Apparent Power (MVA)9.999MVA  ±(1.0%rdg+0.08KVA)
Reactive Power (MVAR)9.999MVAR±(1.0%rdg+0.08KVAR)
Power Factor0.00 to 1.00±0.04
Frequency Range45Hz to 65Hz±0.1Hz
Phase-180° to +180.0°            ±1°
Active Power Energy (MWh)0.0kWh to 9.999MWHr±(2.0%rdg+0.08KWh)


  • AC Power Quality Evaluation
  • Motor/Generator Installation
  • Energy Audits

Highlights of Extech 382100 1200A 3-Phase Power Analyzer:

Single-phase, 3-phase/3-wire or 3-phase/4-wire systems

Enormous backdrop illumination LCD shows 35 parameters at the same time (MW, kVAR, MVA, PF in addition to the voltage and current of the 3 phase)

Presentations Active Power (kW), Apparent Power (kVA), Reactive Power (kVAR) and Power Factor

Current estimations to 1200A and Voltage estimations to 600V

MWH, MVAh, MVARh energy estimations

Flexible CT proportion (1 to 600) and PT proportion (1 to 1000)

Naturally logs up to 30,000 arrangements of estimations with 2GB SD memory card

User-programmable inspecting time from 2 to 7200 seconds

5. Tongbao ETCR5000 3 Phase Power Quality Analyzer

Ranks fifth in our list of best power quality analyzer is the Tongbao ETCR5000 3-Phase Power Quality and Energy Analyzer. If you are looking for the best power analyzer in which you can compromise on your needs and requirements this is the model which you have to purchase price in the mid-range over dollar 3000. This Tongbao ETCR5000 3 Phase Power Quality Analyzer is one of the best devices which professional workers and others


  • Brands: Tongbao
  • Weight: 14.3 pounds
  • Frequency: 40Hz~70Hz
  • Color: Black
  • Material: Plastic

The notable feature of this quality analyzer is that it offers monitoring functions, record storage function, alarm function, test, capture, screenshot function and more

Similar to other models it comes with a Three-Phase Power Quality Analyzer that is easy to use, large LCD screen display, in English bilingual interface, features of anti-vibration structure shell and high resolution.

Did you know? This Tongbao ETCR5000 Power Quality analyzer operating temperature and humidity average is -10℃~40℃ and below 80% Rh. Also, the levels of storage temperature and humidity are as low as-10℃~60℃ and below 70% Rh.

Another important feature which can carefully develop for a range test of three-phase, intelligent, simple man-machine operation of integrated test tools,multi-functional, etc

Final verdict

While all our products featured are reliable in the list, the Fluke 435-II Series of Power Quality Analyzers is our Top pick. It also offers an extensive range of power quality test tools for troubleshooting, preventive maintenance, long-term, recording and analysis in industrial, utilities, commercial building applications, etc.

It works well compared to other models and the construction is just as good as the top branded items that are expensive.

Check out our reviews and choose what suits you!!!

About Kim Goodwin

Kim Goodwin holds a Master's in thermal engineering from the University of Rhode Island. At Thermo Gears, she reviews most equipment that uses thermal imaging technologies.

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