The BPM636 uses pressure sensor to measure pulse and blood pressure. It's large LCD display shows systolic, diastolic, pulse, time and measurement record number in huge digits at the same time making it easy to read and user-friendly for elders. It has a WHO indicator, located to the right of the digital display that indicates reading in a range (normal, high-normal, high) in accordance with standards set by the World Health Organization (WHO). It comes with an alarm that can be set to ring 3 times in a day. It has a comfortable curve-cuff made of anti-bacterial and anti-mold material.