pileofstuff | Cheap medical device: curiosity teardown @pileofstuff | Uploaded June 2023 | Updated October 2024, 11 hours ago.
Remember that cheap pulse oximiter I got in a mailbag a few weeks ago?
Well, it turns out it's not all that accurate, and not at all contestant.

So... time for a teardown! What's inside this little thing?

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This isn't the only way to do it.
It's probably not the best way to do it.
But it's how I did it.