Fully-automatic measurement on the upper arm XL display: 83 x 54 mm, digit size SYS/DIA 21 mm Average of all saved measured values and morning and evening blood pressure for the last 7 days 2 x 60 memory spaces Risk indicator Arrhythmia detection: warning in case of possible heart rhythm disturbance Medical product For upper arm circumferences of 22 - 35 cm Date and time Automatic switch-off function Signaling of operating errors Automatic pressure preselection and deflation Blood pressure passport Battery changing indicator Practical storage pouch Suitable for use with mains adapter 4 x 1.5V alkaline batteries AA included.