What it does
Reads meters you already own.
A meter model is described by a register map in a plain text file — addresses, data types, scaling, and what each register actually measures. Adding a brand is writing a file, not waiting for a vendor.
Speaks the wiring you have.
RS485 serial, Modbus TCP, and RTU through an Ethernet gateway. Several meters on one bus, several buses at once. A scan walks the bus and tells you what answered.
Shows the plant live.
Every reading each meter publishes, every two seconds, grouped by what it is rather than what the manufacturer calls it — so two brands read the same on one page.
Keeps the history.
One hour to a year on the same chart, zoomable, with every high and low preserved even when a week is drawn a thousand pixels wide.
Watches for trouble.
Rules on any measurement: a meter that stopped answering, phase imbalance, reverse power flow, over-voltage. Raised once, cleared once, logged with the peak.
Reports on paper and by email.
Consumption, statistics, charts and the alarm log as PDF or CSV, on a schedule or on demand.
What it looks like
The real application's screens, redrawn for this page. The figures are from a simulated three-phase site, not a customer's plant.
Everything the meter publishes
Not a fixed list of a dozen values — every register the meter exposes, laid out by what it measures. Voltages, currents, per-phase power, power factor, energy counters. Right-click any of them to open it in a chart.
Trends you can trust
Meters and measurements together on one chart, from the live buffer out to everything recorded. Drag to zoom into a period; hover to read the sample under the pointer.
Alarms, and what is being watched
The alarm screen shows the rules as well as the alarms — because an empty alarm table is ambiguous. Nothing wrong, or nothing checked, are opposite conclusions.
Download & documentation
PowerMeter collector
Manager's client
- Download and run the installer on any office PC — no administrator rights needed.
- On the collector, open Settings → Services and press Pair a client. It shows an address and six digits.
- The client opens on Connect to a collector: type the address and the code. The code works once and expires after five minutes.
- To watch another plant, use Add a site and pair with that plant's collector the same way.
Android app
from the collector- On the collector, open Settings → Services and press Show install code — it shows a QR code.
- Point the phone's camera at it and open the link; Android asks to allow the install, as it does for any app not from a store. The link expires after five minutes.
- Press Show pairing code on the collector, then open the app, choose Pair and scan that second code.
- That is all: from then on the app reads the collector over the plant network and updates itself from it.
Free 30-day trial on the real switchboard, every feature included. Install the collector on the plant PC first; the client pairs to it with a six-digit code.
Brochure
Not sure your meters are covered? Send us the make and model and you get an answer the same week.
Send us your meter list →One plant, three screens
The collector does the work. The desktop client and the phone read what it has, over your own network — nothing leaves the site.
The collector, on the plant PC
The only part that speaks to the meters. It polls the bus, records every reading, raises the alarms and sends the reports. It runs as a Windows service, so collection carries on with nobody logged in and starts again by itself after a power cut.
The manager's client, on any office PC
The same live values, consumption, trends and alarms, read from the collector over the LAN. Paired by typing six digits the collector shows you. It holds several sites, so one office can watch more than one plant, and it never touches a meter itself.
The phone, on the plant's own network
Android. Paired by scanning a code on the collector's screen. Live values, consumption and trends in your pocket, and an alarm arrives as a notification rather than waiting to be found. It updates itself from the collector, so the phone on site is never a version behind.
The client and the phone are included. There is no per-seat charge and no account to create: they pair to your collector and read only what it already has.
It tells you when it does not know
A missing reading shows as a dash, never a zero. A gap in the history breaks the line rather than drawing through it, because a line across a gap is a claim nobody can make. A counter that went backwards — reset, replaced, rolled over — is left out of the total rather than counted as zero, and the report says which meter and why. A meter answering through the wrong register map is flagged rather than shown as a screen full of plausible numbers.
This is the difference between a tool an engineer trusts and a dashboard that looks fine while it is wrong.
Proof, not promises
What you get
On the plant PC
- the collector with every screen
- a Windows service that runs headless
- the register maps and an editor for more
- bus scan and commissioning tools
- self-update from a source you control
Everywhere else
- the manager's Windows client
- the Android app
- several sites in one client
- pairing by a six-digit code
- a read-only HTTP API for your own tools
The installation is the product
What a plant buys is meters read correctly, a PC that keeps collecting, and someone who has done it before. The software is licensed per site and works offline — there is no licence server to call and nothing to break when the internet does. The licence does not expire the data: everything already recorded stays readable whatever happens to the key.
Frequently asked questions about energy monitoring with PowerMeter
What is PowerMeter?
PowerMeter is electrical energy monitoring software for factories and plants that already have meters installed. It reads the Modbus meters on the switchboard and shows, on one screen, the values every 2 seconds, consumption, trends, alarms and reports. It runs on a PC on site, as a Windows service, with no new meters needed. It only reads — it never switches or changes anything on the board.
Which energy meters can PowerMeter read?
Any Modbus meter described by a register map — a JSON file with the addresses, data types, scaling and what each register measures. Maps are included for Eastron SDM120 and SDM630 and Algodue UPM209, UPM309, UPT210 and the UEM series. Algodue and Eastron are proven on real hardware; maps transcribed only from the manufacturer's manual are marked in the application as unverified until the first read on a meter. A new brand means a new file, not waiting for a vendor.
How does it connect to the meters: RS485, Modbus RTU or Modbus TCP?
All three: Modbus RTU over RS485 (for example with a USB-RS485 adapter), Modbus TCP, and Modbus RTU through a serial-to-Ethernet gateway. One bus can carry several meters, and several buses can run at once. A scan walks the bus and shows which meters answered.
How often does it read the meters and how much history does it keep?
Every meter is polled every 2 seconds — measured on hardware at a median of 2.00 s. History shows from one hour to one year on the same zoomable chart, and every high and low is kept even over long ranges. Measured storage: about 4.5 GB a year per meter — an ordinary PC holds years of history.
What alarms and reports does it offer?
Rules on any measurement: a meter that stopped answering, phase voltage imbalance, reverse power flow, over-voltage. An alarm arrives by email, as a notification by the Windows clock and on the phone. Consumption reports, statistics, charts and the alarm log are produced as PDF or CSV, on demand or on a schedule, and can be sent by email.
Does it work without internet and without the cloud?
Yes. The collector runs locally as a Windows service and keeps collecting with nobody logged in and after a power cut. The data never leaves the site. The licence is per site and works offline, with no licence server, and data already recorded stays readable whatever happens to the licence.
Can I follow consumption from another PC or from my phone?
Yes. The manager's Windows client and the Android app are included, with no per-seat charge. The desktop client pairs with the collector using a six-digit code and can follow several sites; the phone is installed and paired by scanning a QR code shown by the collector. Both read only over the plant network.
How much does it cost, and is there a trial?
The trial lasts 30 days, with every feature, on the real switchboard. The price is set per installation: send us the make and model of the meters on the board and you get an answer the same week.
Is PowerMeter a SCADA?
No. PowerMeter only reads and records — it does not control equipment. For energy consumption it gives you what an energy SCADA would: live values, history, alarms and reports, without the cost and complexity of a SCADA.
Send us your meter list
Tell us the make and model of what is already on the board. If a register map exists it is a configuration job; if it does not, it is one file. Either way you get an answer the same week, and a trial runs for thirty days on the real switchboard.
Download the brochure PDF · ENMeter list received
Thank you. We will reply by email this week with what it takes to read those meters.