Amazing how close they are tracking. I wonder what's inside them. Do they use the same laser sensor?
On Fri, Oct 2, 2020 at 9:15 AM [email protected] <[email protected]> wrote: > Earlier, when I posted my AirLink to PurpleAir graphs, I said I would > follow-up if the air worsened. > > The air has worsened, and the graph shows the AirLink very closely > following the A sensor of the PurpleAir (even more so than the PurpleAir B > sensor). > > Although one shouldn’t reach conclusions about the AirLink from a couple > of comparison charts, I am personally skeptical of Davis’ claim: > > “ACCURATE: Measures particulates as small as 0.3 micrometers with an > accuracy of +/-10 micrograms per cubic meter in concentrations.“ > > I say this because there are ample studies that show, where air particles > are dominated by those produced from wood smoke, PurpleAir concentrations > read about double the true concentration. > > Again, I’m not stating Davis got this wrong. I’m just more skeptical of > the claim than before these observations. > > —John > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/e633ece8-a3f0-4dfd-a58b-63df7abf7886n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/e633ece8-a3f0-4dfd-a58b-63df7abf7886n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEA8wq6RW-E%2BQ1Dd1KoBcxtdpArS%3DfDdLJT5tKa2EWS6sQ%40mail.gmail.com.
