Omron 5 Series Upper Arm Blood Pressure Monitor with Omron’s Advanced Accuracy helps ensure consistent, precise readings. This model is quick and easy and has a few more features than the 3 Series Upper Arm, like dual settings for two users, memory storage space for up to 100 readings and a wide range cuff that fits standard and large arms; When you trust your heart to Omron, will be empowered by accuracy. Up to two users can measure, store and review up to 50 blood pressure readings each (total 100 readings with date/time stamps); displays the average of up to your last 3 readings taken within 10 minutes; includes irregular heartbeat detection. Omron is the #1 recommended home blood pressure monitor brand by doctors and pharmacists for clinically accurate home monitoring, and the #1 selling manufacturer of home blood pressure monitors for over 40 years. Contoured soft cuff is designed to comfortably fit standard and large adult arm circumferences from 9 to 17 inches in circumference.