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    Can BME688 detect CO2

    Can BME688 detect CO2

    czz
    Member

    BME688 spec states that "Major direct outputs: Index for Air Quality (IAQ), bVOC-& CO₂-equivalents (ppm), Gas scan result (%) & many more (all listed in datasheet in Table 20: BSEC outputs)". Does it means BME688 can detect CO2 concentration to the level of CO2-eq (ppm) or the concentration of other gases to CO2-eq(ppm) greenhouse effect?

    1 REPLY 1

    BSTRobin
    Community Moderator
    Community Moderator

    Hi czz,

    As it mentioned in BME688 data sheet, CO2 equivalents(ppm) output is estimation of the CO2 level in ppm. The sensor does not directly measure CO2, but derives this from the average correlation between VOCs and CO2 in human's exhaled breath.

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