With the Medisana BW 335 wrist blood pressure monitor you can comfortably monitor your blood pressure and health at home. This certified medical device allows you to accurately measure your blood pressure and warns you of cardiac arrhythmias. The wrist blood pressure monitor has 120 memory locations for each of the 2 users and a large, easy-to-read display that clearly shows 5 different values. In addition, all measured values are classified according to the assessments of the World Health Organization (WHO) using traffic light colors. The wrist blood pressure monitor operates on two 1.5 V AAA batteries, which are included in the delivery.