A sleek, easy-to-use blood pressure monitor with one button operation plus advanced feature. The monitor stores the last 90 readings in memory and also calculates and displays the "average" of the total readings stored in memory. It also includes an AC adapter to cut down on battery cost. This clinically validated monitor also offers two innovative features, the Pressure Rating Indicator™and Irregular Heartbeat feature. The Pressure Rating Indicator provides a snapshot of your blood pressure classification based on your measurements and eliminates the guesswork on what your blood pressure measurements mean.