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SpO2 sensor w/ 1 second resolution?
#1
SpO2 sensor w/ 1 second resolution?
I have been using the Wellue O2ring which seems to have a resolution of 4 seconds, i.e. it samples oxygen every 4 seconds, i.e. events are 8 seconds, 12 seconds, 16 seconds, ...

On the other hand, using the official SpO2 sensor my doctor had given me during the titration, OSCAR shows SpO2 readings for every second.

Would love to buy a device that can give me this more granular view of my SpO2 data if someone knows one?
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#2
RE: SpO2 sensor w/ 1 second resolution?
The Resmed add-on oximeter module should be the one you would want. It will incorporate its data into your normal session data.

- Red
Crimson Nape
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The Guide to Understanding OSCAR
OSCAR Chart Organization
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#3
RE: SpO2 sensor w/ 1 second resolution?
That one is $1k, trying to understand potential cheaper solutions... Smile

I assume the O2Ring does the lower frequency sampling to conserve battery, since it's battery is tiny. Maybe one of the devices w/bigger battery samples at higher resolution?
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#4
RE: SpO2 sensor w/ 1 second resolution?
What is the benefit of 1 second interval O2 data?

I mean, I like data as much as the next nerd but, what does that data do for you that 4 second data can't?

(Not sass, serious question)
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#5
RE: SpO2 sensor w/ 1 second resolution?
Your O2 levels shouldn't change that fast, thus needing any finer resolution than 4 seconds.  I was just answering your question about sampling rates, without price consideration.

- Red
Crimson Nape
Apnea Board Moderator
www.ApneaBoard.com
___________________________________
Useful Links -or- When All Else Fails:
The Guide to Understanding OSCAR
OSCAR Chart Organization
Attaching Images and Files on Apnea Board
Apnea Helpful Tips

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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#6
RE: SpO2 sensor w/ 1 second resolution?
All of the Contec oximeters that record record every one second. Some people don't like the original over the finger sensor, but newer versions have a different wrap around sensor. Alos the new version requires using their Windows application to read out the data before transferring it to OSCAR.
Apnea Board Monitors are members who help oversee the smooth functioning of the Board. They are also members of the Advisory Committee which helps shape Apnea Board's rules & policies. Membership in the Advisory Members group does not imply medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.
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#7
RE: SpO2 sensor w/ 1 second resolution?
I am using an Emay EMO-80 finger tip recorder. The output has 1 sec resolution. Cost was 32$. Graphic and CSV output
Downside: I have not discovered how to integrate it with OSCAR.

All those disclosures said, this is data acquired during a sleep study. The WatchPat Spo2 graphic report seems to match the the Emay report for the same time period. 
Now, about how quickly the Spo2 can change, here is the Emay graphic (with a 1 sec resolution):
   
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