For self-monitoring blood pressure. This digital monitor brings convenient one touch blood pressure monitoring to your home. Just press the start button to automatically inflate the cuff and begin measurement. Pressure Rating Indicator displays the correct color coded category the measurement falls under to assist in understanding and achieving accurate results. Alerts you of the presence of an irregular heartbeat and provides blood pressure and pulse rate measurements even if an irregular heartbeat occurs. Display average readings - calculates the average of the total readings stored in memory; a convenient way to get a snapshot of your overall blood pressure health. 90 memory recall. Wrist cuff measures 5.3-8.5 inches (13.5-21.5 cm). Blood pressure measurements determined with this device are equivalent to those obtained by a trained observer using the cuff/stethoscope auscultation method within limits prescribed by the American National Institute (ANSI/AAMI SP10) for electronic sphygmomanometers. Contains: 1 monitor; 1 carrying case; 1 bilingual manual with blood pressure log sheets (English and Spanish); 1 quick start card; 2 AAA batteries.