Description

Measure voltage, current, power, energy, frequency, and power factor with accuracy and ease. The PZEM-004T module includes a split-core transformer for safe, non-invasive current sensing—perfect for home energy monitoring, DIY smart systems, or industrial load measurement.

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Description

Overview

The PZEM-004T is a compact, high-precision AC power monitoring module designed to measure a complete set of electrical parameters. It features support for 80–260V AC input and can monitor current loads up to 100A using the included split-core transformer. The module communicates through a TTL/UART serial interface, allowing easy integration with microcontrollers such as Arduino, ESP32, Raspberry Pi, and other automation systems.

This module is ideal for DIY energy meters, smart-home projects, appliance power monitoring, and industrial load tracking.

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Key Features

• Measures voltage, current, active power, active energy, frequency, and power factor

• Wide input voltage range: 80–260V AC

• Handles up to 100A current using external split-core CT

• Supports power measurement up to approximately 22kW

• Serial interface (TTL/UART) for easy connection to microcontrollers

• Includes reset button to clear energy data

• Safe, non-invasive current measurement using split-core transformer

• Accurate, stable, and reliable measurement performance

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Specifications

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Typical Use Cases

• Monitoring household or industrial AC power consumption

• Smart-home and automation systems for real-time energy measurement

• DIY dashboards and data-logging systems using Arduino/ESP/Raspberry Pi

• Tracking energy usage of appliances, machinery, pumps, heaters, or tools

• Educational and engineering labs requiring accurate AC measurement