50
CO
2
display
In Germany, the concentration of CO
2
of
around 408.8ppm (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.
The measured CO
2
content
is displayed as a numerical
value and a smiley.
Room air quality is very good
400~600 ppm
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