PZEM-004T AC Electric Energy Metering Monitor

(No reviews yet) Write a Review
0.85 KGS
Calculated at Checkout
  • PZEM-004T AC Electric Energy Metering Monitor
  • PZEM-004T AC Electric Energy Metering Monitor


Function description:
1. Voltage:
 Measuring range:80~260V
 Resolution: 0.1V
 Measurement accuracy: 0.5%
Measuring range: 0~10A(PZEM-004T-10A); 0~100A(PZEM-004T-100A)
Starting measure current: 0.01A(PZEM-004T-10A); 0.02A(PZEM-004T-100A)
Resolution: 0.001A
Measurement accuracy: 0.5%
3.Active power:
Measuring range: 0~2.3kW(PZEM-004T-10A); 0~23kW(PZEM-004T-100A)
Starting measure power: 0.4W 
Resolution: 0.1W 
 Display format: 
<1000W, it display one decimal, such as: 999.9W
≥1000W, it display only integer, such as: 1000W
Measurement accuracy: 0.5%
4.Power factor:
Measuring range: 0.00~1.00
Resolution: 0.01
Measurement accuracy: 1%
Measuring range: 45Hz~65Hz 
Resolution: 0.1Hz
Measurement accuracy: 0.5%
6.Active energy:
Measuring range: 0~9999.99kWh
Resolution: 1Wh 
Measurement accuracy: 0.5%
7.Display format: 
<10kWh, the display unit is Wh(1kWh=1000Wh), such as: 9999Wh 
≥10kWh, the display unit is kWh, such as: 9999.99kWh 
Reset energy: use software to reset.

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.
Other instructions:
The TTL interface of this module is a passive interface, it requires external 5V power supply, which means, when communicating, all four ports must be connected (5V, RX, TX, GND), otherwise it cannot communicate.

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


View AllClose