I have two different air quality monitors now (QingPing for home, Aranet for the road) and the CO2 readings tend to diverge, sometimes a lot. Why… is this, as in technical details?
@astrokatie.com@kateviolette.com this seems like the kind of thing you might know
Maybe you've already done this, but I know for the Aranet, it can use recalibration every once in a while (like on the order of 6-12 months if I recall correctly from the manual). I'm less familiar with the QingPing but I wouldn't be surprised if it also could use recalibration sometimes.
I'm not super up on the technical details of why they need recalibration, other than that measuring molecules in gas form is a subtle exercise in general.
(e.g. I have a cool breath monitor for gut issues, and the app will yell at you if you're blowing too fast or slow bc it can bork measurement)
I was just reading the directions to take a new-to-me brand of COVID test and was struck by how many steps had “if you bork this, you’re more likely to get a false negative” disclaimer on them.