The only way to detect high blood pressure is to accurately measure your blood pressure at home and monitor the readings . Measures systolic and diastolic (upper and lower) blood pressure very accurately . Measures heart rate . It gives an indication in case of irregular heartbeats to detect the defect with the IHB feature. It has a memory that saves the last 30 readings . Guaranteed for 5 years by the Swiss international company Microlife first-class assembly in China with high Swiss quality . Smooth simple fast and very practical to use . It contains the time and date for easy reference to saved readings . Arm measurement from M to L ( from 22 to 42 cm ). It works with 4 x AAA batteries enough to take measurements more than 400 times . The device measures 124 x 92 x 61 mm and weighs 251 g . The device package includes the official warranty from the company (the last page of the catalog is sealed) in addition to the catalog in Arabic and the batteries .