ResMed S9 USB Adapter Cable Nasal CPAP Masks you can add additional battery

you can add additional battery  (select SKU 24923) to double the use time

5 to 3 seconds Respiratory Rate:ÊGreater of +/- BPM or +/- 10%of reading Reviewers Tip: If you are a long time CPAP or BiPAP user who has experienced the condition known as "rainout"

The machine is also capable of detecting when you are having an apnea: when the ASV detects an apnea

Over time seals may become less comfortable due to general wear and tear

2 oz   Warranty 1 year   UPC/GTIN Code 00645759689863

ResMed S9 USB Adapter Cable Nasal CPAP Masks you can add additional batteryS9 USB Adapter Cable for Data Transmission Designed to work with any ResMed S9 CPAP machine, the USB Adapter transmits data between the device and your PC. Helps with monitoring your sleep apnea compliance information, eliminating the need to transfer information with an SD card. The data will be automatically transferred when your S9 is plugged into your personal computer. Compliance Monitoring The ResMed S9 USB Adapter will transfer sleep apnea