LifeWatch is not a reality show, but its transmissions are a matter of life and death for its audience. The company sells electronic heart monitors that wirelessly transmit patient data to technicians and physicians for remote evaluation. Its revenue comes from signal monitoring, data evaluation, and notification services, as well as from cardiac event and other patient monitoring devices sold under brands including LifeStar, PMP4, and Card Guard. LifeWatch monitors patients from several facilities located across the US. Customers include cardiologists, diagnostic clinics, and hospitals.  Switzerland-based LifeWatch AG does the vast majority of its business in the US.