PZEM-004T 10A High precision AC Single Phase Current Voltage Energy Meter (Without Coil)

Product Description

The PZEM-004T V3.0 AC Single-Phase Energy Meter Module is a compact energy monitoring module designed to measure important electrical parameters of a single-phase AC supply. It can monitor voltage, current, active power, energy consumption, frequency, and power factor, making it suitable for real-time electrical monitoring and power analysis.

The module supports an 80–260 V AC voltage range and current measurement up to 10 A, with active power measurement up to 2300 W. It provides accurate digital measurements and is particularly useful for embedded systems where electrical data needs to be collected and processed by a microcontroller or computer.

Unlike conventional energy meters, the PZEM-004T V3.0 does not include a built-in display. Instead, measured data can be accessed through its TTL serial interface using the Modbus RTU protocol, allowing easy integration with Arduino, ESP32, Raspberry Pi, and other compatible controllers.

The module also features non-volatile energy memory, allowing cumulative energy consumption data to be retained during power interruptions. Its compact design makes it suitable for smart energy monitoring, IoT systems, automation, solar applications, and AC appliance analysis.

Features

• AC single-phase energy monitoring module
• Measures voltage, current, active power, energy, frequency, and power factor
• Voltage measurement range: 80–260 V AC
• Current measurement range: 0–10 A
• Active power measurement up to 2300 W
• TTL serial communication interface
• Supports Modbus RTU protocol
• Compatible with Arduino, ESP32, Raspberry Pi, and other controllers
• Non-volatile memory for cumulative energy data
• Energy reset function
• No built-in display
• Suitable for embedded and IoT applications
• Compact design for easy system integration

Specifications

Parameter	Specification
Model	PZEM-004T V3.0
Measurement Type	AC Single-Phase
Voltage Range	80–260 V AC
Voltage Resolution	0.1 V
Current Range	0–10 A
Starting Current	0.01 A
Current Resolution	0.001 A
Active Power Range	0–2300 W
Starting Power	0.4 W
Power Resolution	0.1 W
Power Factor Range	0.00–1.00
Power Factor Resolution	0.01
Frequency Range	45–65 Hz
Frequency Resolution	0.1 Hz
Energy Range	0–9999.99 kWh
Energy Resolution	1 Wh
Communication	TTL Serial
Communication Protocol	Modbus RTU
Display	No Built-in Display
Energy Storage	Non-Volatile Memory

Working Principle

The PZEM-004T V3.0 measures the electrical parameters of a single-phase AC circuit and internally processes the measured voltage and current signals.

It calculates parameters such as active power, power factor, frequency, and accumulated energy consumption from the measured electrical characteristics. The collected data can then be requested by a connected controller through the TTL serial interface using Modbus RTU communication.

The cumulative energy value is stored in non-volatile memory, helping retain the recorded energy consumption even when the module loses power.

Communication and Interfacing

The PZEM-004T V3.0 can be connected to a compatible microcontroller or computer through its TTL serial interface.

It can be integrated with:

• Arduino
• ESP32
• ESP8266
• Raspberry Pi with suitable UART/TTL interface
• STM32
• Other compatible microcontrollers
• PC-based monitoring systems

The Modbus RTU interface allows the host controller to request electrical measurement data and incorporate it into a custom monitoring or automation system.

Measured Parameters

The module provides monitoring of:

• Voltage: 80–260 V AC
• Current: 0–10 A
• Active Power: 0–2300 W
• Power Factor: 0.00–1.00
• Frequency: 45–65 Hz
• Active Energy: 0–9999.99 kWh

Applications

• Smart home energy monitoring
• IoT energy monitoring
• AC appliance monitoring
• Industrial electrical monitoring
• Power consumption analysis
• Solar energy monitoring
• Energy management systems
• Electrical load monitoring
• Home automation
• Embedded power monitoring
• AC appliance diagnostics
• Arduino energy meter projects
• ESP32 energy monitoring projects
• Real-time power monitoring
• Industrial automation

Package Includes

• 1 × PZEM-004T V3.0 AC Single-Phase Energy Meter Module

Product Disclaimer

The PZEM-004T V3.0 is designed for single-phase AC electrical measurement within its specified operating ranges. Do not exceed the stated voltage, current, or power limits.

This module does not include a built-in display; measurement data must be accessed through the communication interface.

Working with mains AC voltage can cause electric shock, fire, or serious injury. Proper insulation, enclosure, wiring, protection, and safety precautions must be used. Mains-voltage connections should be performed by a qualified person.

Product images are shown for illustrative and representational purposes only. The actual product colour, dimensions, connector arrangement, wiring, and appearance may vary slightly depending on the manufacturing batch.