alt Hacker NewsThe outdoor CO2 is rising every year. It is not fixed at 400 ppm. The calibrations you speak of are fake. A good sensor can be expected to remain within 10% of reference for ten years.
The outdoor CO2 is rising every year. It is not fixed at 400 ppm. The calibrations you speak of are fake. A good sensor can be expected to remain within 10% of reference for ten years.
The outdoor CO2 is rising every year. It is not fixed at 400 ppm.
But close enough for most purposes. We aren’t doing laboratory measurements here, I just want to know whether or not to open a window.