How a breathalyzer works (alcohol sensor) @AppliedScience
How a breathalyzer works (alcohol sensor) @AppliedScience
Uploaded February 2014 | Updated September 2026, 2 weeks ago
I teardown a commercial, handheld breathalyzer and discuss how it works, then test a standalone ethanol sensor.
seeedstudio.com/depot/images/product/MQ303A.pdf
http://www.kosmodrom.com.ua/pdf/MQ303A.pdf
sparkfun.com/products/8880

http://www-personal.umich.edu/~mswool/publications/Gas_Sensors_preprints.pd.pdf
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How a breathalyzer works (alcohol sensor)

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