[mfrankpb]

sensor.community is probably the larger CO2 map, as it currently has 12,236 active sensors compared to Airgradient's 500 sensors [1]. They also offer instructions for the construction of sensor kits or the purchase of pre-assembled units. The CCC has an interesting presentation about its mission and approach [2]. How do you differentiate yourself from sensor.community?

/edit: My mistake: sensor.community focuses on PM2.5 µg/m³ while you provide CO2 information. Please excuse my mistake.

[1] https://sensor.community/en/

[2] https://media.ccc.de/v/mch2022-213-sensor-community-global-o...

[t-writescode]

I do notice that that website has __fantastic__ coverage of Germany and parts of Europe, but almost nothing in the US. I suppose things like this are very region-specific.

[ahaucnx]

Yes. There are many PM maps with a lot more monitors like PurpleAir map but I don't know any for CO2 comparable to what we launched.