FEATURES : Fully automatic blood pressure and pulse measurement on the wrist , XL display 56 x 54 mm , Average of all saved maesured values and morning and evening blood pressure for the last 7 days , 2 x 60 memory spaces , With WHO indicator (classification of values according to WHO guidelines) , Warns of pos. disterbances of the cardiac rhythm (arrhythmia detection) , For wrist circumference of approx 13.5-23 cm , Signaling of operating errors , Change battery indicator , Automatic measurement during inflation: for fast and comfortable measurement , Incl. batteries and storage box .