Digitaler Stromzähler Monitor Pack – IoT LoRa Local Sensor – Electricity

  • Plug & Play: non-intrusive technology, easy and quick to install
  • Universal: compatible with all german electricity meters (with infrared port or rotating disk)
  • Connected: Long Range radio between the FM232ir sensor and an F-Link
  • Accurate: power load curve in Watts, 1-minute time step
  • Designed and manufactured in France


The Digitaler Stromzähler Monitor Pack is a plug & play solution for monitoring the electricity consumption of the general meter and is specifically intended for the German market. This solution includes an FM232ir sensor (infrared reading head), a LoRa micro-gateway and access to a dashboard to view and download the consumption curve. The measurement time step is 1 minute.

The FM232ir is an IoT sensor that allows remote monitoring of the load curve of all types of installations from the general electricity meter.

It is particularly suitable for reading information provided by an infrared communication port (SML protocol of German mME meters), but also works with old Ferraris meters (electromechanical). It connects locally to a LoRa micro-gateway and allows the 1-minute load curve to be sent at regular intervals (every 20 minutes).

The ideal solution for monitoring the electricity consumption of small and medium-sized buildings (offices, shops, municipal buildings, etc.)

LoRa local technology

Technical characteristics

  • FM232ir: Optical reading head compatible with electronic electricity meters (mMEgerman meters with an infrared communication port and SML protocol) and electromechanical electricity meters (traditional meters with rotating disk)
  • LoRa radio – 868MHz – Specific Local LoRa point to point protocol compatible with F-Link micro-bridge
  • 1-minute option: data message every 20 minutes, including twenty 1-minute successive values
  • Data decoding and storage included for 3 years (Fludia data collect server)
  • Supervision dashboard access included for 3 years (sensor fleet visualization, communication/data quality monitoring)
  • Data collection API included for 3 years
  • After the first three years, possible to switch to a completely autonomous mode (i.e. bypass Fludia data collect server)
  • Batteries: replaceable Lithium 3.6V batteries
  • FM232ir:
    • Optical head size: 46 x 29 x 17mm / Weight: 18g
    • Battery box size: 94 x 74 x 30mm / Weight (without batteries): 76g
  • F-Link:
    • Power supply: 230V/5V adapter (included)
    • Size: 94 x 74 x 30mm
    • Weight: 76g


  • Digitaler Stromzähler Monitor Pack:
    • FM232ir_1mn
    • F-Link micro-bridge
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