Clinically validated for accuracy, the Omron IntelliSense Professional Digital Blood Pressure Monitor is designed for clinical use in a professional setting including a physician?s office, hospital, or other point of care environment. Features: Automatic cuff inflation and deflation eliminates the need to predetermine inflation level setting, Average mode measures up to three readings and averages the total, for a more accurate measurement, Greater choice of arm cuff circumferences with four cuff sizes included -- small, medium, large and extra-large, Reliable power supply through included AC adapter or rechargeable battery pack.