[kingsloi]

Awesome work! Do you have any plans to add/track gas pollutants?

I run a similar open source app specifically for my little community in Gary, IN https://millerbeach.community and run a RAMP monitor provided by a local company Sensit Technologies, and a PurpleAir II and have about ~4 years worth of data in 15 min intervals. I've been meaning to swap out the PurpleAir with another, but I'll swap it out with this instead!

[ahaucnx]

We started testing electrochemical NO and NO2 sensors from Alpha Sense in our lab and are in the early stages to design a unit that would also measure these gases but we are many months away to have something in the market.

[KirillPanov]

The EPA limit for NO2 is 100ppb; have you found a sensor that can reliably report levels near that threshhold for less than $500? I haven't. Also the ones that don't require frequent recalibration seemed to be even more expensive.

[declan_roberts]

I can’t wait for this, especially with how often gas stoves are in the news lately.