Electricity Meter Module FM432ir FM432ir Fludia

The FM432ir is a professional IoT sensor designed to monitor electricity consumption at 1- or 15-minute intervals (depending on the configuration). It is installed directly on the existing main electricity meter and enables reliable remote reading without any intervention in the existing infrastructure. The system consists of an optical read head for the meter and a separate wireless unit, including batteries.
The sensor is specifically designed to read data via the infrared communication port of modern electricity meters using the SML protocol, but also works with traditional Ferraris electromechanical meters. The data is transmitted via LoRaWAN networks, enabling regular recording and analysis of the power curve.
The measurement data can either be decoded directly in the defined payload format or processed via a Fludia server and subsequently retrieved via API. Thanks to its simple installation, the sensor is ideal for retrofitting and is particularly suitable for the remote monitoring of small and medium-sized buildings in the field of smart metering and energy analysis.

Technical specifications

• Optical read head compatible with electronic electricity meters (German mME meters with infrared communication port and SML protocol) and electromechanical electricity meters (conventional meters with a rotating disc)
• LoRa radio – 868 MHz – LoRaWAN 1.0 protocol
• 1-minute option:
  - mME meters: data message every 15 minutes, including fifteen consecutive 1-minute readings
  - Ferraris meters: Data message every 20 minutes, including twenty consecutive 1-minute values
• 15-minute option: Data message every 2 hours, including fifteen consecutive 15-minute values
• Data decoding and storage for 3 years included (Fludia data acquisition server)
• Access to the monitoring dashboard included for 3 years (visualisation of the sensor fleet, monitoring of communication/data quality)
• Data acquisition API included for 3 years
• After the first three years, it is possible to switch to a fully autonomous mode (i.e. bypass the Fludia data acquisition server).
• Batteries: replaceable 3.6 V lithium batteries
  - Battery life for mME counters: 3.5 years for the 1-minute option, 8 years for the 15-minute option
  - Battery life for Ferraris counters: 3.5 years for the 1-minute option, 5 years for the 15-minute option
• Optical head dimensions: 46 x 29 x 17 mm / Weight: 18 g
• Battery compartment dimensions: 94 x 74 x 30 mm / Weight (without batteries): 76 g