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6. CO2 Sensor

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RGill-1 edited this page Feb 7, 2023 · 2 revisions

This device uses the Sensiron SCD41 photoacousitic sensor to detect CO2 levels within a range of 400 - 5,000 ppm. With a data rate of one reading every 5s and a manufacturer claimed accuracy of +/- (40ppm + 5% of reading).

The current design works by compression fitting on a coffee jar. The build guide would open: finish a 200g jar of M&S Gold coffee. With the students we are looking at a new lid mechanism to try to be more universal.

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