Medical apparatus and instruments; cardiographic apparatus and instruments; cardiovascular monitors and recorders; heart monitors and recorders; apparatus and instruments for monitoring and/or recording data pertaining to the electrical activity of the heart; apparatus and instruments for monitoring and/or recording data pertaining to cardiac events; cardiac event monitors and recorders; wireless, internet connected and telemetry cardiac monitor devices; electrocardiograph monitors and recorders; apparatus for monitoring and/or diagnosing cardiovascular diseases; apparatus for recording and/or transmitting cardiographic data; apparatus and instruments for recording and/or transmitting data pertaining to the electrical activity of the heart; apparatus and instruments for recording and/or transmitting data pertaining to cardiac events.;