S9 SD card ?

[JTE48]

Does anyone know if the SD card has to be in the S9 to record the detailed sleep data? It appears that way but with my old S8 it didn't have to. I didn't have it in last night and don't see the data in ResScan or SH. Thanks!

[Pugsy]

Yep, with the S9 it has to be in the machine to get the detailed data. Those data files aren't stored on the machine like they were on the S8.

[JTE48]

ok Thanks, I'll just have to remember to put the card back in after. Correct me if I'm wrong but doesn't the S9 record the last 7 days of detailed data on the card or is it continuous?

[Pugsy]

7 days for the hi definition details (like flow rate I think...I can't ever keep it exactly straight in my head) and then it starts overwriting the oldest.
30 days for other detailed graphs before it starts overwriting.
1 year for summary hours of use and AHI general averages.

If you download at least once a week you won't lose anything at all and if you go past a week you lose just a little details. You won't lose all the detailed data if you go over a week between downloads.