The MDKeeper, from Tadiran Spectralink, provides round-the-clock medical monitoring for at-risk patients.

It is worn like a watch and integrates various medical sensors, a Siemens GSM/GPRS radio module, and a built-in cellular speakerphone and processing unit to measure and transmit data to caregivers.

The MDKeeper measures vital signs, including pulse rate, cardiac rhythm (ECG or EKG), and blood oxygen levels. It can either store the data and transmit it to a medical center at a later time or, in the case of an emergency, transmit the information immediately using the built-in cellular phone while sending an alarm to a caregiver.