The Airlink is only $124 + $13 shipping from Scaled Instruments, but I think you have to now ask for a discount code to get that price (probably a minimum advertised price thing from Davis). Purple Air needs to readjust their pricing to compete, or eventually lose market share. I do like Purple Air's map though.
On Monday, September 21, 2020 at 9:03:13 PM UTC-7 [email protected] wrote: > I’ve been playing with the new Davis AirLink. I have one WeeWX instance > running with it. > > Unlike the PurpleAir, which is slow answering requests and needs an > internet connection to respond, the AirLink is fast (the doc claims it can > respond to 3 queries per second) and presumably will still respond when the > internet is down. > > On the downside, unlike the performance of the PurpleAir, which is pretty > well understood (e.g., during these poor air quality days due to wood > smoke, the LRAPA correction can be used to have some confidence in the > numbers), I’m not aware of any studies with the AirLink. As such, it’s > difficult to have any confidence in the AirLinks numbers. Having said > that, I thought I would plot AirLink concentrations vs. PurpleAir (A and B > sensor) concentrations. > > At present, the AirLink is reporting similar PM2.5 to the PurpleAir (see > below). It would be nice to know if the AirLink continued to closely track > PM2.5 at much higher concentrations. I hope to not find out (it’s been > pretty good here in the SF Bay Area for the last few days), but I’ll reply > here with a graph if the concentrations get real bad again. > > [image: CFC91D13-9283-4550-B98F-330F9FEC22DB.jpeg] > > > > > -- 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/e9e0391e-be47-4ba3-a489-d46abac80495n%40googlegroups.com.
