PZEM-004T AC energy meter and power monitor module with yellow capacitor and green terminal block

PZEM-004T AC Energy Meter & Power Monitor Module with Current Transformer

SKU AA339

$14.99 USD Shipping & tax calculated at checkout
In stock· Order by 3pm ET and it ships today

PZEM-004T AC energy meter and power monitor module with current transformer for measuring mains voltage, current, active power, and kWh in home automation, solar, appliance monitoring, and prototyping.

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Overview

Product Overview

The PZEM-004T AC energy meter is a power monitor module designed to measure and track mains electricity usage with an included current transformer, making it ideal for appliance monitoring, breaker-panel projects, smart plugs, solar and inverter setups, and home automation dashboards. Built for AC load monitoring, the PZEM-004T helps you observe voltage, current, active power, and accumulated energy consumption so you can log usage, spot overloads, and improve efficiency in DIY electronics, prototyping, and embedded monitoring systems. A solid choice for MCU-based data logging, DIY energy audits, and real-time electrical monitoring in workshops, test benches, and connected control projects.

Questions & answers

Frequently asked questions

Yes, the PZEM-004T can be used with Arduino for monitoring and logging electricity usage. Its compatibility with Arduino makes it suitable for DIY projects requiring real-time electrical data.
The PZEM-004T is equipped with a pre-soldered current transformer for easy installation. Connect the module to your MCU and start monitoring AC loads with minimal setup time.
The PZEM-004T module typically uses a UART interface for data communication, allowing it to easily transmit voltage, current, and energy data to your selected microcontroller or data logger.
Yes, the PZEM-004T is ideal for monitoring individual home appliances. Its ability to track active power and energy consumption can help you analyze usage patterns and improve efficiency.
If inaccurate readings occur, check connections for security and ensure the current transformer is appropriately placed. Verify that incompatible devices are not interfering with the UART communication.

Have other questions?

Chat with our US-based team — we usually reply fast.

What's included

Features & Specs

PZEM-004T ModulePZEM-004T AC energy meter module for monitoring mains electricity usage.

Measured ParametersMeasures AC voltage, current, active power, and accumulated energy consumption.

Current TransformerIncludes a current transformer for non-invasive AC load monitoring.

AC Load TrackingDesigned for real-time monitoring of appliances, circuits, and other AC-powered loads.

Embedded LoggingSuitable for MCU-based data logging, prototyping, and embedded power monitoring projects.

Common Use CasesFits appliance monitoring, breaker-panel projects, smart plugs, solar systems, and inverter setups.

Automation DashboardsUseful for home automation dashboards, DIY energy audits, and overload detection.

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