![Amazon.com: Mini CO2 Detector,Upgraded Air Quality Monitor, Stylish and Lightweight CO2 Monitor for Travel Home Indoor,You Can Use Anywhere : Industrial & Scientific Amazon.com: Mini CO2 Detector,Upgraded Air Quality Monitor, Stylish and Lightweight CO2 Monitor for Travel Home Indoor,You Can Use Anywhere : Industrial & Scientific](https://m.media-amazon.com/images/I/51fb8qXLa2L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Mini CO2 Detector,Upgraded Air Quality Monitor, Stylish and Lightweight CO2 Monitor for Travel Home Indoor,You Can Use Anywhere : Industrial & Scientific
![T. Ryan Gregory on Twitter: "A few comparisons. Both calibrated manually outdoors beforehand. At high values the Vitalight may come in lower, but probably sufficiently reliable to inform one's decisions. https://t.co/UCZoJYN2uI" / T. Ryan Gregory on Twitter: "A few comparisons. Both calibrated manually outdoors beforehand. At high values the Vitalight may come in lower, but probably sufficiently reliable to inform one's decisions. https://t.co/UCZoJYN2uI" /](https://pbs.twimg.com/media/FXLRSouXkAUPvMp.jpg:large)
T. Ryan Gregory on Twitter: "A few comparisons. Both calibrated manually outdoors beforehand. At high values the Vitalight may come in lower, but probably sufficiently reliable to inform one's decisions. https://t.co/UCZoJYN2uI" /
![Amanda Hu on X: "Made these rebreathed % and calibration instruction decals for the Vitalight/DonateMask CO2 monitor. I will be posting the printable file for this and the Aranet4 version soon so Amanda Hu on X: "Made these rebreathed % and calibration instruction decals for the Vitalight/DonateMask CO2 monitor. I will be posting the printable file for this and the Aranet4 version soon so](https://pbs.twimg.com/media/Fb_5WB1agAIO7Ds.jpg:large)
Amanda Hu on X: "Made these rebreathed % and calibration instruction decals for the Vitalight/DonateMask CO2 monitor. I will be posting the printable file for this and the Aranet4 version soon so
![Amazon.com: Customer reviews: Vitalight Mini CO2 Detector, Air Quality Monitor, Stylish and Lightweight CO2 Monitor You Can Use Anywhere. Amazon.com: Customer reviews: Vitalight Mini CO2 Detector, Air Quality Monitor, Stylish and Lightweight CO2 Monitor You Can Use Anywhere.](https://m.media-amazon.com/images/I/61T7P+uEetL._UC256,256_CACC,256,256_.jpg)