I have the equipment ordered after the at my older meter (wrist) have proven values displayed during an inspection at the doctor as utopian. Measurements now match doctor values. Handling just the last 25 values are stored and can be accessed individually as well as with average value calculation. Two separate Einschaltknöpfe (for men and women), other family members need to decide on one of the two buttons. (Averages vote then of course no longer). The unit is very quiet, the pressure on inflation is not too high. The cuff fits perfectly even in extremely "thick" upper arms. "Only" 4 stars it is because, although there is a connection for a power supply that must be ordered separately though.