With its outstanding ability, TensioDay Plus is surely more than meets the eye. TensioDay Plus is a revolutionary new technology in the field of ABPM. With the invasively validated method it can additionally measure the central systolic blood pressure beyond the traditional parameters of a blood pressure measurement. By this outstanding feature the diurnal changes in the peripheral and central, aortic blood pressure can be measured simultaneously, which has basic importance in the assessment of the action of different antihypertensive drugs. Additional parameters: Aortic systolic blood pressure (SBPao), Aortic pulse pressure (PPao). Traditionally measured parameters: Systolic and diastolic blood pressure (Sys, Dia), Mean arterial pressure (MAP), Pulse pressure (PP), Heart rate (HR).