3 ms·
To everyone considering $150 NDIR sensors to be cheap: Look up quingping co2 monitor on Aliexpress, the white one with BW screen. Goes for around $70, is NDIR b
by tomaskafka 2y ago
To everyone considering $150 NDIR sensors to be cheap: Look up quingping co2 monitor on Aliexpress, the white one with BW screen. Goes for around $70, is NDIR based, and I absolutely recommend it after having it for more than year.
Can be usb c powered, or last over a month on battery and then sync the measurements to the cloud, if you want to leave it somewhere, eg to monitor a school, or some remote house.