ADE WS 1908 Mode D'emploi page 50

CO display
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‚ In Germany, the concentration of CO
around 408.8 ppm (measured in 2018 at the
highest point above sea level) is somewhat
lower than the global average (ppm = parts
per million).
‚ The sensor does not measure carbon
dioxide in the environment directly, but
through calculation of other relevant
parameters.
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The measured CO
is displayed as a numerical
value and a smiley.
Room air quality is very good
400~600 ppm
of
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content
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