FM232ir - IoT LoRa Local Sensor - Electricity on meters

FM232ir – IoT LoRa Local Sensor – Electricity

  • Plug & Play: non-intrusive optical reading technology, easy and quick to install, no electric contact
  • Universal: compatible with all electricity meters (with infrared port or with rotating disk)
  • Customized: multiple versions (1mn or 15mn) adapted to you remote reading requirement
  • Accurate: power load curve in Watts, with 1-minute time step
  • Designed and manufactured in France


FM232ir is an IoT sensor for monitoring the electricity consumption (electric power) of all types of buildings. It has been specially designed for meters with infrared communication ports (mME German meters with SML protocol), but can also be used with old Ferraris meters. It is easy to install on the existing main electricity meter. The sensor consists of an optical reading head and a radio box (also including batteries) and is available with a 1-minute or 15-minutes time step (option to be selected).

It connects locally to an F-Link micro-bridge (not included) through a specific local Lora radio protocol and sends the electricity curve at regular intervals. The sensor only transmits messages to an F-Link micro-bridge (to be purchased separately). Up to 10 sensors can be registered on a single F-Link. The F-Link micro-bridge receives these radio messages and forwards to Fludia data collect server, by means of the existing Internet connection. The F-Link can connect to the existing Internet box (DHCP protocol) through one of these two means: Wifi (F-Link can be provided with the Wifi password with the help of a smartphone or a PC) or provided Ethernet cable.

Data can be retrieved from the data collect server either through the API or by connecting to the dashboard and manually downloading a file for a selected period of time. An FTP solution can also be provided.

LoRa local principle

Technical characteristics

  • 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:
    • if mME meter, data message every 15 minutes, including fifteen 1-minute successive values
    • if Ferraris meter, data message every 20 minutes, including twenty 1-minute successive values
  • 15-minutes option: data message every 2 hours, including eight 15-minutes 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)
  • Battery: 2 replaceable Lithium 3.6V batteries
    • Lifetime for electronic meters: 3.5 years for 1-minute option, 8 years for 15-minute option
    • Lifetime for electromechanical meters: 3.5 years for 1-minute option, 5 years for 15-minute option
  • Optical head size: 40 x 30 x 20mm / Weight: 19g
  • Battery box size: 94 x 74 x 30mm / Weight (without batteries): 76g


  • FM232ir_1mn
  • FM232ir_15mn
  • F-Link micro-bridge

Scroll to Top