Transmissometer: measures concentration with lasers

I’m starting a company that makes campfire scented cologne, and to solve a problem in my production process, I built a transmissometer.  Here is the video Aaron Kowalski and I made with Element 14‘s support:

Transmissometer from Pumping Station: One on Vimeo.

Here are more details on the device, including photos, schematics, and source code.

Thanks to everyone who helped out with the build and filming!

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