Good sleep oxygen oxymeter?

I'm looking for one. The one that connects straight to my apap is new at $900+. Is there a cheaper generic version that could track o2 levels during the night? I'm willing to pay up to $100 if needed.

I want it to check my o2 against odd breathing patterns in sleepyhead. Stuck at 1.3-3.5 AHI no matter what I do with my pressure.

I would suggest an oximeter that is compatible with Sleepyhead

Pulse Oximeters are medical devices used to measure blood oxygen saturation. During extended Apnea events and abnormal breathing patterns, blood oxygen saturation levels can drop significantly, and can indicate issues that need medical attention.
SleepyHead gives you the ability to track Oximetry data alongside CPAP session data, which can give valuable insight into the effectiveness of CPAP treatment. It will also work standalone with your Pulse Oximeter, allowing you to store, track and review your recorded data.
SleepyHead is currently compatible with Contec CMS50D+, CMS50E, CMS50F and CMS50I serial oximeters.
(Note: Direct importing from bluetooth models is probaby not possible yet)
You may wish to note, other companies, such as Pulox, simply rebadge Contec CMS50's under new names, such as the Pulox PO-200, PO-300, PO-400. These should also work.
It also can read from ChoiceMMed MD300W1 oximeter .dat files.
Please remember: If you are trying to sync oximetry and CPAP data, please make sure you imported your CPAP sessions first before proceeding!
Important Notes: For SleepyHead to be able to locate and read directly from your Oximeter device, you need to ensure the correct device drivers (eg. USB to Serial UART) have been installed on your computer. For more information about this, click here.
Contec CMS50D+ devices do not have an internal clock, and do not record a starting time. If you do not have a CPAP session to link a recording to, you will have to enter the start time manually after the import process is completed.
Even for devices with an internal clock, it is still recommended to get into the habit of starting oximeter records at the same time as CPAP sessions, because CPAP internal clocks tend to drift over time, and not all can be reset easily.

Agree with above.

Make sure whatever one your get has the cable to xfer over to your computer etc and DONT LOSE IT

they are around $35 bucks or amazon etc. there are some out there for like 20 bucks that say its CMS50 xx but dont have an xfer cable so it would only be good to just see what your o2 is not record it and pear it up on sleepyhead and your sleep reports


https://www.ebay.com/itm/US-Seller-Fing ... rk:18:pf:0

bonjour wrote: ↑

Thu Feb 07, 2019 5:02 am

I would suggest an oximeter that is compatible with Sleepyhead

Pulse Oximeters are medical devices used to measure blood oxygen saturation. During extended Apnea events and abnormal breathing patterns, blood oxygen saturation levels can drop significantly, and can indicate issues that need medical attention.
SleepyHead gives you the ability to track Oximetry data alongside CPAP session data, which can give valuable insight into the effectiveness of CPAP treatment. It will also work standalone with your Pulse Oximeter, allowing you to store, track and review your recorded data.
SleepyHead is currently compatible with Contec CMS50D+, CMS50E, CMS50F and CMS50I serial oximeters.
(Note: Direct importing from bluetooth models is probaby not possible yet)
You may wish to note, other companies, such as Pulox, simply rebadge Contec CMS50's under new names, such as the Pulox PO-200, PO-300, PO-400. These should also work.
It also can read from ChoiceMMed MD300W1 oximeter .dat files.
Please remember: If you are trying to sync oximetry and CPAP data, please make sure you imported your CPAP sessions first before proceeding!
Important Notes: For SleepyHead to be able to locate and read directly from your Oximeter device, you need to ensure the correct device drivers (eg. USB to Serial UART) have been installed on your computer. For more information about this, click here.
Contec CMS50D+ devices do not have an internal clock, and do not record a starting time. If you do not have a CPAP session to link a recording to, you will have to enter the start time manually after the import process is completed.
Even for devices with an internal clock, it is still recommended to get into the habit of starting oximeter records at the same time as CPAP sessions, because CPAP internal clocks tend to drift over time, and not all can be reset easily.

Great, great answer. Thank you so much!

metsfan302 wrote: ↑

Thu Feb 07, 2019 5:58 am

Agree with above.

Make sure whatever one your get has the cable to xfer over to your computer etc and DONT LOSE IT

they are around $35 bucks or amazon etc. there are some out there for like 20 bucks that say its CMS50 xx but dont have an xfer cable so it would only be good to just see what your o2 is not record it and pear it up on sleepyhead and your sleep reports


https://www.ebay.com/itm/US-Seller-Fing ... rk:18:pf:0

Thank you, I'll check the ones on Amazon out. Relief to hear it's only in the $35 range.

David1447 wrote: ↑

Thu Feb 07, 2019 12:08 pm

Thank you, I'll check the ones on Amazon out. Relief to hear it's only in the $35 range.

The CMS50D+ is cheapest, but is all on your finger, and some people have to tape it on... it also eats batteries (the docs say 24 hours of use per set of alkalines, or three nights... ish). Also, it requires a special cable that *looks* like a USB cable, but isn't.

The *E is rechargeable, but also requires the cable.

The F is wrist mounted, with just a finger sleeve, and has a clock, so it's easier to get the times right. The F and I use a plain USB cable.

The I is like the F, but records multiple sessions, and also records the perfusion index (how well the blood is getting to your finger)... not usually interesting info, unless you need it.

They range from about 30-35 for the D+ to around 95$ for the I, (from aliexpress.com or ebay).

The "D" model does not record.

I am using my second CMS50I that is wrist worn and has a rubber (?) finger boot. Paid about $110-125 for each through Amazon and e-bay. Here are some observations that may be worth what you have paid me for them.. It is my understanding that the 50I has never been approved for sale by USA providers.

The (not consumer replaceable) rechargeable battery failed in my first one after about 2 years, maybe because of overcharging. Am not sure now, but think the cable connection to the wrist unit may not be the earlier standard (once common but now deprecated), older, smaller, male USB. If my second unit fails in two years, I'll probably get a third one and will try sending the two failed units in one shipment to the Chinese factory for battery replacements UNLESS a similar but better unit is found in the under $150 range. The well stocked battery specialty shop here does not have access to the necessary battery which comes with special circuitry built onto it.

I believe the 50I stores about 56 hours of recordings in up to 8 sessions. I usually allow 7 sleep sessions to accumulate before any deletion. But I happen to do daily off loading to a spreadsheet graphic (of the SpO2, Sleepyhead and accelerometer data) so the one night recording capability of the 50F would be OK. It would not be OK for me to tape the larger clip-on units to my finger. I do find it best to tape the finger boot to reduce artifacts from movements, which the 50I is highly sensitive to anyway. The wrist model with taped finger boot allows a lot of use of that hand for arranging covers, bed pillow and reading material.

The Perfusion Index (PI) measure has helped me get more familiar with the circulation/oxygenation factors, but I have lots to learn and have many questions to get answered eventually. When I see periods of large swings (mostly above 90% level) in SpO2 lasting 20-50 minutes, approximately, I'll see a drop in PI over the same time span. I'm not sure, but think those periods may be mostly REM sleep. More focused on other sleep factors, I haven't dug in enough to know if PI is more a measure of tissue saturation with blood or a measure of SpO2 (oxygenation) of the blood/capillary flow at the sensor.

For me, it is most useful to watch two things from the 50I: (1) the baseline overall SpO2 for the sleep session since my drop periods are not often a large factor, (2) the pulse rises and durations that coincide with bodily movements (as an indicator of relative exertion, i.e., as an indicator of unscored but significant sleep disturbance/arousal, maybe). I use an accelerometer to give me sleep position and motion times and the quickness/sharpness of the moves. But light a tap, for example, on the accelerometer can show a much larger effect than a slow roll over so, for now, pulse rate changes give some indication of exertion level and, maybe, of sleep disturbance level. Anyway, the $89 accelerometer clearly showed I had mostly positional apnea and that motivated and documents my measures that stopped me from sleeping within about 30 degrees of supine (bringing my OA to mostly 0.0).

I have one year AHI down to 0.5 and have had up to a week (a time or two) of 0.0. The sleep forums have been most valuable, but sleep doctors? Not so much once outfitted with blower and mask. My new normal for sleep is much improved but still far from truly restful: lots of Flow Limitation, Snore and movement. I did not have an oximeter for my first 3 months of CPAP, but think SpO2 got very low then--like my home sleep test showed--with an RDI in the neighborhood of 60 and SpO2 down to 68% for significant periods as I recall those values.

One more thing to consider if choosing beween the I and F models. When I become less OCD, it will be convenient to allow several days of data to accumulate without downloading for review inside Sleepyhead or, simply, for review with the software that comes with the devices. If only one session can be recorded at a time that option demands a download with each use before recording the next session.

Good luck making the right choice FOR YOU.