Firmware history

NB: user guide and Datasheet will always be updated accordingly to the latest active firmware version

May 2025 : 1047 Firmware update

• Modbus configuration of parity available

• Unique internal serial number for identification of each NextPM with a command

Simplified protocol optimization:

• Possibility to activate or deactivate the heating system with simplified protocol

• Total Suspended Particles (TSP) available

• 5 channels available

• Improved temperature and relative humidity measurement

Modbus optimization:

• Sleep mode

• Calibration parameters implemented internally as y=ax+b function to give users the possibility to adjust PM concentration (only available for PM1, PM2.5 and PM10 in µg/m3)

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Sept 2024: 1046 Firmware update

• Improvement of the temperature and relative humidity measures with and without heating system

• Modification of the behaviour of the heating system, with automatic regulation shifting from 0% up to 100% if relative humidity exceeds 65%

• New modbus registers added to get the particle size distribution on the whole range of measurement of the NextPM ,from 0.3-10µm in number of particle per liter

  • 0.3 - 0.5 µm

  • 0.5 - 1 µm

  • 1 - 2.5 µm

  • 2.5 - 5 µm

  • 5 - 10 µm

• Total Suspended Particles (TSP) added to modbus register