Russ Garrett on Nostr: nprofile1q…0vyme as others have mentioned, that sensor measures in the percent ...

nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpq7gdyhkh7kvf5vk8junsl8yltr5ux3ck7sqlf6nzceg52584uzcsss0vyme (nprofile…vyme) as others have mentioned, that sensor measures in the percent range (error of 0.2% which is 2000ppm) and so isn't designed for atmospheric CO2 measurements.

Their SCD40 is a great sensor though and is only 10x10x7mm https://sensirion.com/products/catalog/SCD40