Ancestors

Written by Jiří Eischmann on 2025-01-15 at 22:18

The #AirGradient air quality monitor arrived sooner than expected. It was really easy to assemble and connect to #HomeAssistant and it's already monitoring the air quality outside our house.

[#]AirQuality #AirPollution

=> View attached media | View attached media | View attached media

=> More informations about this toot | More toots from sesivany@vivaldi.net

Written by Kevin P. Fleming on 2025-01-15 at 22:37

@sesivany Pay close attention to the correction algorithms posted on their forum... the outdoor unit in particular has an issue with heat generated by the processor.

=> More informations about this toot | More toots from kevin@km6g.us

Written by Jiří Eischmann on 2025-01-15 at 22:42

@kevin does it also affect the air quality data or only the temperature and relative humidity? Because I'm not going to use it to monitor these, I've got a weather station for that.

I've already noticed that the temperature measured by this is 1-1.5C higher than what the weather station measures.

=> More informations about this toot | More toots from sesivany@vivaldi.net

Written by Kevin P. Fleming on 2025-01-15 at 22:48

@sesivany Just temperature and humidity.

=> More informations about this toot | More toots from kevin@km6g.us

Written by Jiří Eischmann on 2025-01-16 at 07:24

@kevin I see they also have a correction formula for PM2.5 and a pretty complex one. Another rabbit hole I got myself into. 🙈

=> More informations about this toot | More toots from sesivany@vivaldi.net

Toot

Written by Kevin P. Fleming on 2025-01-16 at 11:20

@sesivany Yeah... I've got three indoor and one outdoor unit, and while there's a lot to like about them they also have repeatability issues. Of course, I'm not using them for scientific purposes 🙂

=> More informations about this toot | More toots from kevin@km6g.us

Descendants

Written by Jiří Eischmann on 2025-01-16 at 12:50

@kevin BTW I learned that the Home Assistant integration already applies the correction formulas. So no need to do anything about it.

The temperature is still 1.5C higher, but it may be due to a different location. The weather station is on the fence on the other side of the garden while the air quality monitor is in its temporary location on the porch.

I also don't need scientific accuracy. Several neighbors burn wood to heat up their houses and the air tends to be quite bad in winter, so I just want to know how bad it is.

=> More informations about this toot | More toots from sesivany@vivaldi.net