PZEM-004T-10A AC Voltage & Current Monitoring Module – 100A/10A Version (TTL Output)

The PZEM-004T-10A is a compact AC power monitoring module designed for accurate real-time measurement of voltage, current, power, energy (kWh), frequency, and power factor. It features a built-in measurement circuit capable of handling up to 10A direct input, eliminating the need for an external CT coil (unlike the 100A version).

With its TTL serial interface, the PZEM-004T-10A easily integrates with microcontrollers such as Arduino, ESP8266, ESP32, STM32, and Raspberry Pi via UART. Ideal for smart energy monitoring, automation systems, and DIY power analysis projects.

Specifications:

• Model: PZEM-004T v3.0 (10A version)

• Voltage Measurement Range: 80–260V AC

• Current Range: 0–10A (direct measurement)

• Power Measurement: 0–2.3kW

• Energy Measurement: 0–9999 kWh

• Frequency: 45–65Hz

• Power Factor: 0.00–1.00

• Interface: TTL UART (5V level)

• Communication Protocol: Modbus-RTU style

• Accuracy: ±0.5% (typical)

• Features:

  • Measures voltage, current, power, energy, frequency, PF

  • Built-in shunt resistor for direct 10A measurement

  • Resettable energy counter

  • Isolated measurement section for improved safety

  • Works easily with Arduino/ESP libraries

• Applications:

  • Smart power monitoring

  • Home automation energy tracking

  • DIY IoT power meter

  • Appliance consumption analysis

  • STEM/engineering projects

Reliable and easy to integrate, the PZEM-004T-10A is perfect for accurate AC energy monitoring in compact systems.