[ProtectOurFreedom]

I’ve got sleep apnea and use a CPAP machine. Out of curiosity, I started using a recording Pulse Oximeter when I sleep. It’s a small ring you wear on your index finger. Now I’ve got a year’s worth of data which provides me a good baseline.

[Osage Orange]

Yep....lot's of newer stuff out there...

I've never heard of that..and I'm in the Biz.

Thanks for letting me know....

Is the ring over your nailbed?