PZEM-004T AC Electric Energy Metering Monitor

Comprehensive 6-in-1 AC Electrical Telemetry: Concurrently measures AC RMS voltage (80V - 260V), active current (0 - 100A), active power (0 - 23kW), energy consumption (0 - 9999kWh), grid frequency (45Hz - 65Hz), and power factor (0.00 - 1.00PF).

Galvanically Isolated TTL Serial Interface: Features a high-speed TTL UART communication port with optocoupler isolation, protecting connected host microcontrollers like ESP32, Arduino, or Raspberry Pi from high AC line voltages.

Non-Invasive Split-Core Current Transformer: Includes a external current transformer (CT) coil for non-contact, safe AC line current sampling without cutting heavy primary power cabling.

Onboard Non-Volatile Energy Data Storage: Stores accumulated active energy (kWh) metrics on internal non-volatile flash memory, preserving data across power outages and power cycles.

Programmable Power Overload Alarm: Outfitted with configurable power threshold limits that trigger hardware software alarms when total active load exceeds pre-set safety thresholds.

Housing & Board Material: Flame-retardant ABS plastic casing with high-grade FR-4 glass-epoxy internal PCB, external ferrite current transformer coil, and screw terminal blocks.

Technical Specifications:

Target Operating Voltage Range: 80V - 260V AC (50Hz / 60Hz).

Current Measurement Range: 0A - 100A AC (with supplied CT coil).

Communication Protocol: TTL UART Serial ($9600\text{ baud}$, Modbus-RTU style).

Power Consumption: ≤ 1.0W.

Color: Green PCB with Black/Yellow Enclosure Components and Terminal Blocks.

Usage Advice: Connect AC power supply (80V-260V) to the power input screw terminals; pass one live line through the current transformer coil, and connect V_CC (5V), GND, TX, and RX to your MCU UART serial port.

Maintenance: Ensure screw terminal connections are firmly tightened; keep the module clean, dry, and enclosed in an insulated junction box free from conductive dust and high humidity.

Essential Multi-Metric AC Energy Audit Node: Position as a premiere industrial-grade AC power monitoring module for smart home energy dashboards, solar generation feed-in loggers, sub-metering panels, and server rack power distribution units (PDUs).

Highlight High-Precision Multi-Variable Telemetry & Isolation: Emphasize how 6-parameter metering combined with optocoupler-isolated TTL serial output allows accurate, safe digital energy tracking without burdening host microcontrollers with analog signal processing.

Recommended Cross-Sell Add-ons: Pair with KQ-130F Power Cable Carrier Module, AC Single Phase Voltage Transformer Sensor, SCT-013-000 Non-Invasive AC Current Clamp Sensor 100A 1V, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Power Sensor collection page as your comprehensive AC electric energy metering monitor module.