* too not two
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Pulse oximeters are very easy to build; you just need a photodiode, red LED, IR LED, and op-amp. Don’t expect supply chain problems personally but who knows
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I'll wait :D
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I wish I could remember how I heard to buy this early enough https://twitter.com/amelapay/status/1233200566228193281?s=21 …https://twitter.com/amelapay/status/1233200566228193281 …
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I don’t know how you heard, but the rationalists were very much telling everyone to buy these!
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I was given this advice from a friend who had covid a month ago and I bought one for $20. A worthwhile insurance policy for everybody.
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Bought one weeks ago, after dithering for weeks. Cheap but not as cheap as before - also this shit is super janky. For spot checks only of course, not continuous monitoring. Real issue is that hypoxia may not register early on in pulse oximetry, depending on hypoxia mechanism.
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I don't know why everyone is so down on phone apps for oximetry. Some aren't perfect, but they are accurate enough and you'll get general trends.
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can't even buy a thermometer right now
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