this Clinically Validated, Fully Automatic Digital Blood Pressure Monitor Has A Compact Design And Provides A Quick And Easy Way To Check For Hypertension. this Compact Unit With A Large Easy-to-read Display And Simple One-button Operation Features Omron"s Intellisense Technology That Ensures The Cuff Inflates To The Correct Pressure To Take A Reading. It Means It Will Not Over Inflate And Avoids Painful Measurements. The Omron M2 Classic Also Features Irregular Heartbeat Detection And Has A Hypertension Level Indicator For Users Who Want To Verify That Their Blood Pressure Is In The Recommended Level Of Under 135/85 Mmhg. when Using An Omron Blood Pressure Monitor, Please Ensure That The Cuff Size Is Correct. The Omron M2 Classic Is Supplied With A Standard Size Cuff For Arm Circumference 22 Cm To 32 Cm. An Optional Omron Large Blood Pressure Monitor Cuff, Suitable For Arm Circumference 32 Cm To 42 Cm, Is Available To Purchase Separately. with A Clinically Validated Monitor, You Can Be Assured That It Has Undergone Tests Conducted By Independent Doctors According To A Predetermined Protocol, Which Includes Ensuring The Accuracy Of The Measurements (algorithm) Of The Blood Pressure Monitor. omron Has Been A Leading Innovator For Healthcare Products Since The Company Was Started In 1933. Since Then, Omron Has Been Involved In World Breaking Health Product Developments Including Launching The Very First Digital Blood Pressure Monitor For Home Use In 1973 And Introducing The First Digital Thermometer In 1983.