Overview
This advanced AC power monitoring module is available in two variants—PZEM-020 (0–10A direct measurement) and PZEM-022 (0–100A CT-based measurement). Both models feature a bright color display and deliver precise real-time measurements for voltage, current, active power, energy consumption, frequency, and power factor.
The PZEM-020 is ideal for direct low-current loads up to 10A, while the PZEM-022 is suited for higher loads up to 100A using an external current transformer (CT). Both units support a wide AC voltage range (80–260V) and provide highly detailed measurement formats for maximum accuracy across all ranges.
Key Features
- Color LCD Display with clear multi-parameter visualization
- Two Model Options:
- PZEM-020: Direct 0–10A measurement
- PZEM-022: CT-based 0–100A measurement
- Wide Voltage Support: 80–260V AC
- High-Precision Power Measurement:
- PZEM-020: Up to 2200W
- PZEM-022: Up to 22kW
- Energy Monitoring up to 999kWh
- Power Factor and Frequency Tracking
- Start detection for low power/current loads
- Easy Panel Mounting and wiring terminals
- Perfect for home energy audits, device testing, automation panels, and industrial monitoring
Specification
Technical details for PZEM-020 and PZEM-022 meters.
| Specification | PZEM-020 | PZEM-022 |
|---|---|---|
| Voltage Measurement Range | 80–260V AC | |
| Voltage Display Format | 80–260V | |
| Current Measurement Range | 0–10A (start current: 0.005A) |
0–100A (start current: 0.02A) |
| Current Display Format | 0.000–10.00A | <10A → 0.000–9.000A ≥10A → 10.00–99.99A |
| Power Measurement Range | 0–2200W (start power: 0.5W) |
0–22000W (start power: 0.5W) |
| Power Display Format | <10W → 1.00–9.99W <100W → 10.0–99.9W <1000W → 100–999W ≥1000W → 1.00–2.20kW |
<10W → 1.00–9.99W <100W → 10.0–99.9W <1000W → 100–999W <10000W → 1.00–9.90kW ≥10000W → 10.0–22.0kW |
| Energy Measurement Range | 0–999kWh | |
| Energy Display Format | <1kWh → 0–999Wh <10kWh → 1.00–9.99kWh ≥10kWh → 10–999kWh |
|
| Frequency Measurement Range | 45–65Hz | |
| Frequency Display Format | Hz | |
| Power Factor Range | 0–1.00PF | |
| Power Factor Display Format | 0.00–1.00PF | |
| Operating Voltage | AC 80–260V, 50/60Hz | |
| Current Input | Direct 0–10A | 0–100A via external current transformer (CT) |
Functions & Control
Here is the list of fucntions and ways to control the PZEM-020 and PZEM-022 meters.
| Function | Details |
|---|---|
| Backlight Control | The backlight can be turned ON or OFF using a short press. The backlight state is saved automatically. |
| Energy Reset (Clear) | Step 1: Long press the button for 5 seconds until the energy digits flash, then release the button. Step 2: Press again briefly to clear the energy data and exit the flashing reset mode. Step 3: If no button is pressed within 5 seconds, the system will cancel the reset and keep the existing energy data. |
| Power Alarm Value Setting | Step 1: Long press the button for 3 seconds until the screen displays “SET CLr”. Release the button to enter the power alarm setting mode. Step 2: The power value will flash, indicating the starting position of the minimum digit. Short press to increase the value by +1. If no button is pressed for 3 seconds, it automatically shifts to the next digit. Step 3: After completing the setting, long press for more than 5 seconds to save and exit. The valid alarm setting range is 0.0–2.2kW. |
Connection Guide
PZEM-020
PZEM-022
Opps
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