OMRON 3 Series Wrist blood pressure monitor is lightweight, portable and convenient. It stores up to 60 blood pressure readings, plus any irregular heartbeats detected. The Hypertension Indicator displays a “HIGH” symbol if your systolic (upper) measurement reaches 130 mmHg or above and/or if your diastolic (lower) measurement reaches 80 mmHg or above. It displays the average of up to the last 3 readings taken within 10 minutes. This monitor fits adult wrists ranging from 5.3” to 8.5” in circumference.