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Oximeters-Target Results and Do you really get what you pay for?
I did not find the oximeter useful. I was not worried about my average O2 being too low. Instead, I was trying to figure out how important (worrisome) my episodes of CA were. I suspect my apnea episodes were too brief to noticeably affect the O2 level at the fingertip, but I don’t think that's especially reassuring that they weren’t stressing my heart.
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(03-28-2017, 05:17 AM)beet Wrote: I recommend the CMS-50I over the 50F.  Advantages:
(1) Sharper display.
(2) Clock (50F has no clock at all). 50I saves the start time with each measurement, which is useful to correlate with Sleepyhead data.
(3) Perfusion index, a measure of the strength and reliability of the reading, is recorded for each data sample and is displayed during the recording, so you can adjust the finger sleeve to improve the signal strength.  I found it difficult to achieve a consistently high signal, but at least it's good to have this feedback.
(4) It can save multiple recording sessions, although this is of limited value since you have to recharge it after 10 or 12 hours of recording.

The catch is that there is no US distributor, so you can only buy it from Alibaba.  I found their service surprisingly good.

This is probably a dumb question....but why not just get an oximetry adapter cable and plug that into the Resmed Airsense 10??  Wouldn't the machine be able to keep track of oxygen levels for you thereby not necessitating the purchase of a more expensive stand alone item like the CMS-50I?
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Did a search and found this on the other Apnea forum posted by Palerider:

a hugely better alternative is to buy a cms50i from aliexpress.com for under 100$, and sync the data with sleepyhead.

benefits of the 'official' oximeter:
the data is recorded on the sd card and synced with your cpap data.
would show it's data in resscan, (if you're masochistic Smile)

benefits of the cms50i:
no cord to get tangled up in.
1/10th the cost
offers perfusion index chart.
records whether the cpap is running or not.
time and date stamped multi session capable.

things they both do
collect pulse and Spo2 data.
allow data to show up in sleepyhead sync'd with your cpap data.

There's my answer. Smile
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I think the connection is proprietary for the Airsense. The Resmed oximeter is very pricey, too. It may have more accuracy
Please organize your SleeyHead screenshots like this.
I'm an epidemiologist, not a medical provider. 
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Just returned the NONIN BP/SpO2 back to my dme after a week of use today. To sell me a complete setup to use on my ResMed A10 Autoset was in the $950 range. He's NOT gonna order me one. Bad enough I gotta sleep with a hose pipe much less a cable to. But it did the job that he was looking for and that was to see if my oxygen levels where dropping at night or not. I don't use one at night but do check it when I wake in morning sometimeso with a fingertip style with no recorder.
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