We’ve explored a variety of CO2 sensors, and what we’ve observed is that they show good consistency. The SCD30 tends to be a bit more responsive—sometimes exhibiting larger fluctuations and faster response times. However, for everyday use, the SCD40’s SCO2-1 performs well and is more than adequate.
As for the role of CO2, it’s clear that keeping it within a healthy range helps us breathe fresh air. In crowded situations or when indoor spaces are closed for extended periods, it can serve as an interesting reference point. Higher CO2 levels in a confined space typically mean less oxygen—or, conversely, that more air is being exchanged.
As part of an air monitoring system, these sensors help us better understand the air we breathe.
We’re thrilled to have built these ourselves, shared them, and seen them work so well :)
We invite everyone to join us on this fun adventure with these air sensors—in the long run, they seem to be reliable and perform well :)
