This Precise Blood Pressure Monitor is capable of storing and reviewing the last 120 readings of two users. Stethoscopes With a very intelligent system, this upper arm blood pressure monitor allows you to get an accurate reading within 2 minutes. With the push of a button, you can very easily measure your blood pressure accurately in the comfort of your own home. Your systolic, diastolic, pulse and heart rate measurements are displayed on the screen, the OMS indicator will allow you to locate your blood pressure level compared to normal. Finally, the measured data as well as the date and time will be stored in the memory. By navigating in the functions, you have the possibility to display the averages of the last three measurements. By looking at the last 30 measurements, you can follow the evolution of your blood pressure level over time. Specifications: Memory capacity: 99 measurements for 2 people Operating temperatures: 5 ~ 40, Humidity: 15% - 85% Storage temperatures: -10 ~ 55 , Humidity: 10% - 85% Power supply: USB port or 4 AAA 1.5V batteries (not included) Measuring ranges: Pressure: 0KPa-3703kpa (0mmHg-280mmHg) Pulse: 40-199times / min Accuracy: 3mmHg Static pressure: 3mmHg ( 0.4kPa) Pulse: at 5 % Safe and comfortable, this device measures your blood pressure completely automatically. Measuring range: Pressure 20 ~ 280mmHg, Pulse: 40 ~ 160 pulses / min. High quality and very secure: Large LCD display, CE FC standards, FDA approved. Double measurement: The blood pressure monitor quickly measures both blood pressure and pulse. The device also displays the average value. All with very high precision.