Monitoring of medical parameters often limits the mobility of the patient, eg., to the hospital. We present the first steps toward a solution where the patient is offered safety, while allowed the mobility to carry on with daily activities. A pulse oximeter is interfaced to a wireless sensor platform. The sensor system acts as a Bluetooth device providing a TCP/IP interface for configuration and maintenance. This allows user interaction through standardized WWW-browser technology. The sensor provides platform independent client software for data presentation. Sensor data can be transferred over IP/UDP and displayed in real time on the client device.