Wrist cuff 5.3-8.5 in. One touch. 90 memory recall. Irregular heartbeat detection. Professional accuracy at home. Fast. Easy. Accurate. Monitor Features: Ease of Use: This digital wrist 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; Irregular Heartbeat Detection: Alerts you of the presence of an irregular heartbeat and provides blood pressure and pulse rate measurements even if an irregular heartbeat occurs; Displays 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; This Box Contains: 1 monitor; 1 carrying case; 1 bilingual manual with blood pressure log sheets (English & Spanish); 1 quick start card and 2 AAA Batteries. Blood pressure measurements determined with this device are equivalent to those obtained by a trained observer using the cuff/stethoscope auscultation method within the limits prescribed by the American National Standards Institute (ANSI/AAMI SIMO) for electronic sphygmomanometers. Manufactured by an ISO 9001 and 13485 registered company. Engineered in Japan. Made in China.