PZEM-004T AC Energy Meter Power Monitor with Open CT 100A
VAT inclusive; Computed calculations added locally.
Overview
The PZEM-004T AC Multi-function Electric Energy Metering Power Monitor with Open CT provides a convenient way to monitor electrical parameters in single-phase AC systems. It supports an operating voltage range of 80–260VAC and measures voltage, current, power, and energy with a stated measurement accuracy of ±1.0%.
An open-type current transformer (CT) is included for current measurement without requiring the measured conductor to be directly connected to the monitoring module. The module also provides a TTL serial interface, allowing compatible microcontrollers and development platforms such as Arduino, ESP8266, ESP32, and Raspberry Pi to retrieve measurement data for logging, display, or automation projects.
The PZEM-004T can be useful for home energy monitoring, machine-level power measurement, IoT energy projects, educational experiments, and compatible solar or inverter monitoring systems. Its power-down memory can retain accumulated energy data, while the built-in button allows the stored energy count to be cleared when required.
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Product Technical Information
Technical Details
The PZEM-004T is an AC energy monitoring module designed to provide electrical measurements for single-phase systems. It combines voltage, current, power, and energy monitoring in one compact module and provides serial communication for integration with embedded and IoT platforms.
Key Features
- Measures AC voltage, current, active power, and accumulated energy
- Supports 80–260VAC input
- Rated current measurement up to 100A
- Rated power listed as 22,000W
- Stated measurement accuracy of ±1.0%
- Open CT design for current measurement
- TTL serial communication interface
- Power-down memory for accumulated energy data
- Dedicated button for clearing accumulated energy
- Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, and similar platforms
- Designed for indoor applications
Applications
The PZEM-004T can be used in:
- Home electricity and energy monitoring
- Smart energy meter projects
- Arduino energy-monitoring systems
- ESP8266 and ESP32 IoT projects
- Raspberry Pi power monitoring
- Machine and equipment power monitoring
- Electronics laboratory and educational projects
- Solar and inverter monitoring applications
- Automated energy data logging systems
Important Notes
- This module is intended for indoor use.
- Do not exceed the stated rated load/power specifications.
- AC mains wiring can be hazardous. Installation and wiring should be performed by a suitably qualified person using appropriate electrical safety practices.
- Incorrect wiring may damage the module or create an electrical safety hazard. Verify all connections before energizing the system.
- The module uses an open CT for current measurement; follow the appropriate installation arrangement for the CT and monitored conductor.
- The supplied information does not specify every electrical protection or installation requirement. The module should not be treated as a substitute for certified protective equipment.
- The package does not include a USB cable.
- Product images are for illustration and may differ from the actual supplied product.
- The stated ±1.0% accuracy is based on the provided product information; actual measurement performance can depend on operating conditions and installation.
Package Includes
- 1 × PZEM-004T AC Multi-function Electric Energy Metering Power Monitor with Open CT
Frequently Asked Questions
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