PZEM-004T TTL Port RS485 Modbus Meter Volt Amp Power Energy PF With Split CT And USB

The PZEM-004T TTL Port RS485 Modbus Meter is a single phase AC power monitoring module designed to measure voltage, current, active power, energy consumption, and power factor. It operates with a split core current transformer for non invasive current measurement and supports TTL and RS485 Modbus communication for system integration.

This module is suitable for industrial monitoring, energy management systems, automation panels, and embedded power measurement projects. The included USB interface allows easy configuration and data acquisition through compatible software or microcontroller platforms.

KEY FEATURES

• Measures voltage/ampere/power/energy/power factor
• Supports TTL serial and RS485 Modbus communication
• Includes split core current transformer
• Non invasive current measurement design
• USB interface for configuration and monitoring
• Suitable for single phase AC systems
• Compact power monitoring module

SPECIFICATIONS

• Voltage Range = 80-260V AC
• Current Range = 0-100A AC with split CT
• Power Measurement = Active power
• Energy Measurement = kWh cumulative
• Power Factor Range = 0.00-1.00
• Frequency Range = 45-65Hz
• Communication = TTL serial/RS485 Modbus
• Accuracy = Class 1 typical

INTERFACES

• L = AC live input
• N = AC neutral input
• CT+ = Current transformer terminal
• CT- = Current transformer terminal
• TX = TTL transmit
• RX = TTL receive
• RS485 A = RS485 data A
• RS485 B = RS485 data B
• USB = USB communication port
• VCC = Module power supply
• GND = Ground