Pocket meter for detecting carbon dioxide. Displays the gas concentration on the screen.
CO2 meters
Best-selling CO2 meters, multipurpose, other measurements in addition to carbon dioxide in the air.
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Herter CO2 meter 333shop
Portable IAQ gas detector with which you can check indoor air quality.

Testo 315-3 CO and CO2 meter 333shop
It measures carbon monoxide and carbon dioxide in the environment in parallel.

Testo 160 IAQData logger Wi-Fi for recording air quality 333shop
Data logger suitable for determining indoor air quality in crowded enclosed spaces