That's interesting. For regular use however this may not be a big deal, auto calibration has a secondary mechanism by which it will recalibrate in just a few mi

That's interesting. For regular use however this may not be a big deal, auto calibration has a secondary mechanism by which it will recalibrate in just a few minutes if ppm < 400. So after 8 days plugged in, the sensor is sure to be calibrated incorrectly to inside air, then you take it outside and it recalibrates again to correct values within a few minutes?