A real desktop app for your PZEM module.
PZEM-014 and PZEM-016 power meters are solid hardware with no software to match. PZEM Monitor reads live voltage, current, power, energy, frequency, and power factor, logs every session to CSV, and emails you the moment a threshold trips — on Windows, macOS, or Linux.
Everything the module doesn't come with.
The PZEM itself just measures. PZEM Monitor is the interface, the logbook, and the alarm system built around it.
Check in from anywhere, with an email.
Email alerts above are the app reaching out to you. This is the other direction: send the computer running PZEM Monitor a message with "PZEM STATUS" in the subject line, from anywhere, and it writes back with your current readings and a screenshot of the app. No VPN, no remote desktop, no port forwarding.
Three steps, no code.
PZEM modules connect to live mains wiring. Always follow your local electrical code and the module manufacturer's instructions when wiring one in.
One license. Every platform.
- Windows, macOS (Apple Silicon & Intel), and Linux builds
- Activate on one machine at a time — deactivate and move it yourself from the License panel, anytime
- Works offline, with a 30-day grace period if you're ever without a connection
- License key delivered by email the moment you check out
Questions, answered.
Which PZEM models does this work with?+
PZEM-014 and PZEM-016, connected over their serial (Modbus) interface.
Do I need to know Modbus, or write any code?+
No. Everything happens through the app's interface — connect your device, pick the COM port, and go.
Can I run it on more than one computer?+
Each license activates on one machine at a time. If you get a new computer, open the License panel and deactivate the old one first — that frees the activation for the new machine.
What happens if the machine running it is offline?+
PZEM Monitor keeps working. It checks in with the license server when it can, warns you once you're inside 7 days of the grace period, and only locks after 30 days with no successful check-in.
Which email providers work for alerts?+
Gmail, iCloud, and Yahoo have one-click presets. Any other provider that supports SMTP and IMAP with a username and password (an app password, where required) works through the "Custom" option.
What's your refund policy?+
Refunds go through Lemon Squeezy. Once a refund is issued, the license is disabled and the app locks on its next check-in — full terms are in the license agreement shown when you first launch the app.