Peacefair PZEM-004T AC Multi-function Electric Energy Metering Power Monitor

(9 customer reviews)

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SKU: 62480
  1. Brand: Peacefair
  2. Model: PZEM-004T
  3. Operating Voltage: 80-260VAC
  4. Test Voltage: 80-260VAC
  5. Rated Current: 100A
  6. Rated power: 100A / 22000W
  7. Operating frequency: 45-65Hz
  8. Measurement accuracy: 1.0


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Category: Other Measuring Instrument
Tags: Energy Meter, Power Meter, Voltmeter, Ammeter, PZEM-004T, AC Meter

This Peacefair PZEM-004T Multi-function AC Power Monitor is very popular in electrical consumption measurement projects. It is capable of measuring four interrelated electrical variables as voltage, current, power, and energy. 

This tiny PZEM-004T circuit is great for measuring AC (RMS) voltage, current, and power (single-phase). The unit easily interfaces with Arduino and other hardware using the code library.

Simply power the board with a power supply (or you can use the AC source you are measuring) and connect the circular sensor to the board. Run the wire through the circular sensor and you`re ready to start measuring the voltage, current, and power. The circuit also comes with a TTL to USB adapter wire for easy connection to a computer or microcontroller.

This module features a TTL serial data communication interface, you can read and set the relevant parameters via the serial port; but if you want to communicate with a device which has USB or RS232 (such as a computer), you need to be equipped with different TTL pinboard (USB communication needs to be equipped with TTL to USB pinboard; RS232 communication needs to be equipped with TTL to RS232 pinboard).

The Peacefair PZEM-004T features a built-in button on the panel, used to make the electricity clear function.

  1. This module is suitable for indoor, not outdoor use.
  2. The applied load should not exceed the rated power.
  3. The wiring should not be wrong.

Peacefair 01B46F70 D244 4911 873B 453278A49233

Note: Package does not include a USB cable

Features :

  1. Electrical parameter measurement function (voltage, current, active power, power).
  2. The power button clear function.
  3. Power-down data storage function (cumulative power down before saving).
  4. PC PC display function (display voltage, current, active power, power).
  5. The serial communication function (comes with TTL serial interface, through various terminals to communicate with the adapter plate, read, and set the parameters).

Package Includes:

1 x PZEM-004T Multi-function AC Power Monitor Module

1 x CT coil

Tutorial :

Electric monitoring and communication module





Operating Voltage (VDC):

80-260V (AC)

Test Voltage

80-260V (AC)

Max. Operating Current (mA)


Rated Power (W)


Operating Frequency


Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.075 kg
Shipping Dimensions 10 × 4 × 3 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 9 reviews

4.9 overall

Add a review

  1. (verified owner)

    connected it to the mains power supply to monitor total energy consumption and load through blynk app

  2. C. Srikumar (verified owner)

    Works OK.

    C. Srikumar

  3. hiranjyoti (verified owner)

    Works as expected. Good product. Thanks Robu.


  4. Vivek (verified owner)

    Product is good and working perfectly


  5. Selva Kumar A

    I was struggled to do measurement in AC side like AC current, PF, KW, KVA, KVAR but with this module we can find all these. Thanks Robu for Quality & Prompt Service

    Selva Kumar A

  6. Avinash.Hirekerur (verified owner)

    Works fine as expected.


  7. Kishor C


    Kishor C

  8. Vikasha Electronics (verified owner)

    Working Fine..

    Vikasha Electronics

  9. Meenaben (verified owner)

    Very good product and received fast. Working exactly as per specification ..thanks



Arduino communication library

Connection with Arduino

Questions and answers of the customers

    Is there a version of this product which can be us... Read more
  1. 0 votes
    Q Is there a version of this product which can be used for 3 phase power measurement instead of buy...... Read more answer now
    Asked by srikumarc on February 18, 2024 12:58 pm
    A Sorry, version of this product for three phase pow... Read more
  2. my pzem004t shows wrong power factor around 0.05 i... Read more
  3. 0 votes
    Q my pzem004t shows wrong power factor around 0.05 in pure resistive load, any one have any idea ho...... Read more answer now
    Asked by digi.world286 on March 11, 2023 4:06 am
    A Hello, for your query kindly mail us at https://su... Read more
  4. Is this version 1.0 or version 3.0 ? Photo says 3.... Read more
  5. 2 votes
    Q Is this version 1.0 or version 3.0 ? Photo says 3.0 answer now
    Asked by drsrikanthb on September 29, 2020 12:04 pm
    A Yes, it is of version 3.0
  6. any body used Peacefair PZEM-004T Multi-function A... Read more
  7. 0 votes
    Q any body used Peacefair PZEM-004T Multi-function AC Power Monitor Module with arduino
    Asked by krishsaini200844 on July 31, 2020 4:52 pm
    There are no answers for this question yet. Answer now
  8. What is the version of the board?
  9. 0 votes
    Q What is the version of the board? answer now
    Asked by Abhijith KV on February 20, 2020 4:46 am
    A Please refer to the datasheet in the attachment fo... Read more
Only registered users are eligible to enter questions
Country Of Origin: China

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