Description:With one touch of a button, you can measure your blood pressure with ease and accuracy in the comfort of your own home in just a few steps.Your systolic, diastolic, pulse readings and pulse rate will display on the screen, WHO Indicator will classify your blood pressure level, the reading together with the date and time will store in the memory.You can optional displays average of last three readings. By recalling the last 30 readings, you can track your blood pressure level any time anywhere.Specifications:Double 99 Memory Group: For 2 peoplesOperating Temperatures: 5℃-40℃, 15% - 85% RHStorage Temperatures: -10℃-55℃, 10% - 85% RHSupply: USB Interface or 4 x 1.5V AAA Battery(not included)Measurement RangePressure: 0KPa-3703kpa(0mmHg-280mmHg)Pulse Rate: 40-199times/minAccuracy: 3mmHgStatic Pressure: 3mmHg (0.4kPa)Pulse: Within 5%