FLUDIA: Optical meter readers, pulse sensors and energy audit loggers

FLUDIA makes optical electricity readers, pulse interfaces and data loggers for monitoring existing building meters.

Summary

Best for
Adding load profiles to existing electricity meters, or reading pulse outputs on gas, water and heat meters.
Less suited to
A universal Modbus gateway: local LoRa, LoRaWAN and cellular products have distinct collection paths.
Deployment
Battery-powered reader at the meter, with an offline logger, local bridge or wide-area network depending on the product.
Data in
Meter LED or rotating disc, infrared SML data on compatible German meters, and model-specific pulse inputs.

Overview

FLUDIA specialises in collecting information from meters that are already installed. Its optical readers attach to the electricity meter rather than inserting a new instrument into the supply. Depending on the product, they observe the meter's blinking indicator, rotating disc or infrared communication port. Pulse-input readers extend the range to gas, water and heat meters.

The FM332Log illustrates the company's audit approach: an optical head and battery-powered memory unit record a one-minute electricity load curve. Data is transferred to a computer and exported as CSV. This gives an energy auditor a temporary measurement route without installing a permanent radio network or arranging continuous internet access at the meter.

Offering

FLUDIA offers distinct routes for ongoing collection and short measurement campaigns. The FM232e combines an optical electricity-reading head with a local LoRa radio box. It sends data to the separately supplied F-Link bridge, which forwards readings using the site's Ethernet or Wi-Fi connection. A bridge can serve up to ten supported sensors.

The FM232p-n instead connects to an open-collector or reed pulse output, supporting consumption collection from gas, water and heat meters. The FM332Log stores up to 75 days of one-minute readings for later computer retrieval. These are three different installation choices: optical remote reading, pulse remote reading and an offline electricity audit.

Products and platforms

  1. FM432ir

    LoRaWAN infrared reader

    Reads compatible SML infrared electricity-meter data, with published payload decoding.2

  2. FM232g-n

    Gas-meter reader using local LoRa communication.5

  3. Fludia data collect server

    Server-side collection destination described for the FM232e and F-Link system.10

  4. F-Link micro-bridge

    Local-LoRa to network bridge used by the FM232e collection system.10

  5. FM432e

    Non-invasive electricity-meter reader using LoRaWAN.5

  6. FM442e

    Non-invasive electricity-meter reader using NB-IoT/LTE-M.5

  7. FM442ir

    Infrared electricity-meter reader using NB-IoT/LTE-M; verify meter protocol compatibility.5

  8. tagawatt

    Plug-and-play electricity submetering solution for disaggregated building energy consumption.5

  9. FM432g-n

    Gas-meter reader using LoRaWAN.5

  10. FM442g-n

    Gas-meter reader using NB-IoT/LTE-M.5

  11. FM432p-n

    Pulse-output meter reader using LoRaWAN.5

  12. FM442p-n

    Pulse-output meter reader using NB-IoT/LTE-M.5

  13. Energy Saving Pack

    Packaged energy-monitoring offering; check included reader and collection arrangements for the intended meters.3

Technology

The FM432ir reads compatible German mME meters through their infrared SML port and sends data over LoRaWAN 1.0. Its documentation also describes a rotating-disc reading mode. Payload documentation allows independent decoding, while FLUDIA's server provides an alternative API-based collection route.

By contrast, the FM232e uses a specific local LoRa protocol with F-Link, not a general LoRaWAN connection. Sampling and transmission are separate: its one-minute option sends a batch of twenty values every twenty minutes. This distinction matters when comparing a detailed historical load curve with an immediately available live reading. Product and payload compatibility still need checking for any proposed receiving platform; this profile does not establish a tested Edge integration.

Markets

FLUDIA's application examples focus on how consumption changes with building activity. Retail examples include refrigeration, lighting and use outside opening hours. School examples compare weekends and holidays with occupied periods and use measured data for educational feedback. Public-lighting examples examine whether changes in cabinet load follow the intended dimming schedule.

The same page describes recording a consumption profile before sizing a self-consumption solar installation. Its Energy Saving Pack combines an optical electricity reader and F-Link bridge for offices, shops and municipalities. The practical output is a time-based consumption curve that can reveal persistent overnight demand or show whether a schedule change has actually reduced energy use.

Company

The French government enterprise register dates FLUDIA, SIREN 442854147, to July 2002. FLUDIA publishes its address in Suresnes, France, and describes in-house product design and firmware development near Paris. It identifies INES in Maine-et-Loire as its electronic-design partner and TME in Mayenne as its electronics-manufacturing partner. That is a specific account of its French development and production chain.

The company traces its technical focus to optical reading, submetering and on-device analysis. Its technology page explains the measurement approach, while its product catalogue separates local radio, LoRaWAN, cellular and offline options. This makes FLUDIA most recognisable as a specialist in obtaining usable consumption information from existing meters, rather than as a supplier of a replacement electricity meter for every installation.

Alternatives in power metering and monitoring

What to look for in power metering and monitoring

References

  1. Energy Savings - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  2. FM432ir - IoT LoRaWAN Sensor - Electricity - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  3. Energy Saving Pack - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  4. Fludia (opens in a new tab)
  5. Products - IoT sensors - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  6. Technology - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  7. Use cases - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  8. About Fludia - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  9. News - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  10. FM232e - IoT LoRa Local Sensor - Electricity - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  11. FM232p - IoT LoRa Local Sensor - Pulse - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  12. FM332Log - Datalogger - Electricity - Fludia - Smart Energy monitoring sensors (opens in a new tab)
  13. French government FLUDIA company register (opens in a new tab)

This profile does not imply a commercial relationship with FLUDIA and may contain inaccuracies.