News for hackers. Stuff that matters.

A comment on Air Lab – A portable and open air quality measuring device. Parent comment

Re:Air Lab – A portable and open air quality measuring device by formerly_proven on Thursday June 05, 2025 @12:43PM (#44193319)
Reasonable CO2 NDIR sensors use two chambers: one sampling ambient air for the measurement and a sealed chamber with a reference gas for autocal.

edit: It seems AirGradient uses one of the cheap sensors.

[ Parent | on HN ]

There are no comments on this comment yet.