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A comment on Building the Pocket CO2 Project. Parent comment

Re:Building the Pocket CO2 Project by dallyo on Thursday April 27, 2023 @06:18AM (#35725882)
Well price is no guarantee. Try the hand sanitiser test I detailed above.
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Re:Building the Pocket CO2 Project by tmoertel on Saturday April 29, 2023 @08:13AM (#35752180)
The CO2 sensor in the View Plus id advertised as follows:

NDIR Sensor (Non-Dispersive Infra-Red): Measurement range 400–5000 ppm Optimum Accuracy ±50ppm ±3% within 10 – 35°C / 50 - 95°F and 0 – 80%RH after initial calibration time

Can you tell from that description whether it's a true CO2 sensor?

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Re:Building the Pocket CO2 Project by dallyo on Friday May 12, 2023 @06:20AM (#35914235)
That's proper CO2 sensor then. The cheap ones are estimating CO2 levels from VOC levels.
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