AirGradient Forum

Outdoor Monitor PM 2.5 values different for Airgradient dashboard and Home Assistant

I have just installed my Outdoor Monitor Model: O-1PST.
I noticed that the values for PM 2.5 are contactly almost 10 units higher in the AirGradient dashboard than the values submitted to Home Assistant.
Do I need to configure something to make the values consistent?


Screenshot 2025-02-04 at 17.41.25

Thanks.

Hi @Gabbar ,

On Home Assistant integration, applied values for PM25 is always the compensated value, not raw. Is it possible that you set PM correction on AirGradient dashboard to Raw Value?

@Samuel_AirGradient thanks for the response. Yes this is true. I left it to default after the setup.
Right now the advanced settings menu on the dashboard shows me:

So, I should set it to EPA Formula, I suppose? These are the options I got:
Screenshot 2025-02-04 at 20.06.24

EDIT: What are these place settings ?.

Yes if you want it specific to that monitor.

Well, after setting the PM 2.5 tp EPA Formula, the values on the Dashboard and Home Assistant are synchronised. So that fixed the value difference.
Thanks.
Still dont know what are these place settings

You can open place settings on the AirGradient dashboard , and see descriptions there about place settings for default configurations.

aha… did not know about this. thanks.