DreamStation cellular modem replacement. It has an embedded SIM card communicating to cellular tower, transmitting sleep apnea therapy data back to Philips Respironics. Your service provider can read your compliance data and send notifications to your machine, troubleshot the CPAP, or change computer settings remotely.
This modem comes in two options: with Oximetry or without. Consult your doctor for which one you need.
This device works in US only.