The Meter Pro from SwitchBot is so easy to use, and will keep me updated on firework smoke, air hazards and more.

Helmholtz Association of German Research Centres. "New Gas Sensors For Monitoring Carbon Dioxide Sinks." ScienceDaily. ScienceDaily, 9 May 2008. <www.sciencedaily.com / releases / 2008 / 05 ...

The SwitchBot Meter Pro CO2 Monitor isn’t HomeKit-native, but with SwitchBot Hub 2, it works with Matter. Here’s what it can do and how to integrate it.

Equipped with Swiss-made sensors, this device offers: ... The SwitchBot Meter Pro is $29.99, while the SwitchBot Meter Pro (CO2 Monitor) is available for $69.99.

If you read though the comments people talk about it, one of the ways to make a CO2 meter is to use a VOC sensor, thats why it is sensitive to alcohol. Its lot cheaper than using infrared detectors.

Vaisala CO2 sensors deployed in the Building Biospheres exhibit in the Belgian Pavilion at Architecture Biennale 2025 Real-time data display. Credit - Dirk De Pauw, Plant AnalytiX Prof Kathy ...

Building Biospeheres exhibition within the Belgian Pavillion Prof Kathy Steppe - Universiteit Gent - fitting Vaisala GMP252 CO2 probe to we Tuesday, 02 January 2024 12:17 GMT عربي ...

Vaisala CO2 sensors deployed in the Building Biospheres exhibit in the Belgian Pavilion at Architecture Biennale 2025 Real-time data display. Credit - Dirk De Pauw, Plant AnalytiX Prof Kathy ...