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    BME 68x Co2 Range

    BME 68x Co2 Range

    mtibaldi
    New Poster

    Dear. I need know how is the range for eCo2 (ppm / %) for bme680 and bme688. Can I use this sensor for mesurament %Co2 with concentration about 30% in grain fermentation in closed room? thanks 

    3 REPLIES 3

    BSTRobin
    Community Moderator
    Community Moderator

    Hi mtibaldi,

    You can refer to the range of equivalent CO2 output from BSEC.

    2023-10-04_17h03_04.png

    Thanks for your answer. I need to measure Co2 up to a maximum of 30% (V/V) according to the image below. Is it possible with Bme680 or Bme688? I do not see the maximum eCo2 output value (Bsec) in the table. Can you suggest any sensor with I2C output that meets this requirement?
    Thank you. yours

    mtibaldi_0-1696423795248.png

     

     

    BSTRobin
    Community Moderator
    Community Moderator

    Hi mtibaldi,

    If your application requires precise measurement of CO2 concentration, BME688 will not be able to achieve such measurements. BME688 does not directly measure CO2, and the CO2 output from BSEC is calculated based on VOCs equivalence.

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