Description
The PZEM-004T is a smart single-phase AC power monitoring module designed to measure voltage, current, power, energy (kWh), frequency, and power factor with high accuracy. Supporting 110V/220V AC systems and up to 100A current measurement (via external current transformer), this module is ideal for energy monitoring, automation systems, and IoT power projects.
Using Modbus TTL communication, the PZEM-004T easily interfaces with Arduino, ESP32, Raspberry Pi, and other microcontrollers, allowing real-time electrical data logging and analysis. It’s widely used in smart energy meters, home automation, solar monitoring, and educational electrical experiments.
Key Features
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Measures: Voltage, Current, Power, Energy (kWh), Frequency, Power Factor
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Supports 110V / 220V AC single phase
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Up to 100A current measurement (with CT sensor)
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Modbus TTL serial communication
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High measurement accuracy
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Compatible with Arduino, ESP, Raspberry Pi
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Suitable for IoT and energy monitoring systems
Applications
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Smart energy monitoring projects
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Home and industrial power measurement
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IoT electrical data logging
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Solar and inverter monitoring
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STEM and electrical education experiments
Package Includes
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1 × PZEM-004T Power Monitor Module
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1 × 100A Current Transformer (CT)











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