3 ms·
How are you measuring those levels? I haven't come across a great sensor for CO2 that isn't expensive and needs weekly calibration.
by chaud 5y ago
How are you measuring those levels? I haven't come across a great sensor for CO2 that isn't expensive and needs weekly calibration.
- sparrc 5y agoI use airthings wave. Seems to be fairly accurate as far as I can tell. Whenever I open the windows the CO2 level drops down fairly close to the atmospheric CO2.