The iPod 3211 use a 3-byte serial protocol: The serial transmission rate for all data formats shall be as follows:Bits per SecondData BitsParity Stop Bits Flow Control96008None1NoneSerial Data Format #1:Packet DescriptionThree bytes of data are transmitted 1 once per second.Byte 1 - StatusBIT7BIT6BI...

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If they can see your data remotely, they can probably change your settings remotely - I wouldn't like that one bit.
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'They' being anyone or anything clever enough to gain access. Not just Resmed, insurance or your physician

Hang in there: it's worth it. Keep making changes and adjustments until the system is: 1) comfortable 2) effective Ask for help if help if you can not resolve the problem from your health care professional. It took me a long time, but it was worth it. I started with a full mask and now use a nasal m...

Ebay had the unterminated Nonin 3211 oximeters: http://www.nonin.com/documents/ipod%20Specifications.pdf . * TTL Output * RS-232 Output SERIAL DATA FORMAT #1: 1) Serial format 9600, n, 8, 1 2) Rate Sends 3 bytes of data once a second. 3) Data 1st byte = Status BIT 7 = ALWAYS SET TO "1" BIT 6 = SENSO...