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have you bought oximeter?
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Imp Bron
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 May 30 2021, 01:58 PM
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Getting Started
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QUOTE(redtuna @ May 30 2021, 01:34 PM) Have u ever wonder why u can find a lot of cap ayam with fake 'FDA' online at RM 18.90 when legit medical brand like medisana & rossmaxx selling at up to RM400? The components cost is actually cheap The concept is just led light with some circuit board covered with plastics. No other special expensive sensors. Definitely can mass produce for cheap if your company not profit driven However the accuracy is the real problem. No name brand got no reputation. You can't simply trust their accuracy and you can't test their accuracy. Named brand care about reputation so they make sure their products really works. They also pay others regulatory body to test and certificate their products. People also trust their brand and willing to pay more |
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Imp Bron
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May 30 2021, 02:07 PM
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Getting Started
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Check out this youtuber he use expensive equipment to check the accuracy of fitness tracker. Maybe if it will be helpful if you want to know the accuracy of your fitness tracker, but he don't test cheap oximeter https://youtube.com/c/TheQuantifiedScientist |
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Imp Bron
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May 30 2021, 02:15 PM
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Getting Started
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QUOTE(hcmalaya @ May 30 2021, 02:09 PM) Lower Oximeter use infra red light, one side beam thru finger and capture on the other side Smartphones that beam white light and measure from camera very poor accuracy. Samsung use red light slightly better only.. Then smartwatches beam on wrist instead of finger also poor Those cheap mass oximeter may have reliability issues but its accuracy is likely much better than phones So if wana grade them A- medical oximeter B- reputable oximeter (medisana etc) C- mass oximeter (china made etc) D- smartphone red light E- smartphone white light/ smartwatches You have any recommendations for C? Feel like buying one. Currently have D/E quality oximeter don't think it accurate at all. This post has been edited by Imp Bron: May 30 2021, 02:18 PM |
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