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Yes. Look up quingping co2 monitor on Aliexpress, the white one with BW screen. It’s NDIR based, and can last a month on battery and then sync the measurements
by tomaskafka 2y ago
Yes. Look up quingping co2 monitor on Aliexpress, the white one with BW screen. It’s NDIR based, and can last a month on battery and then sync the measurements to the cloud, if you want to leave it somewhere. Around $70.