Beurer BM40 upper arm blood pressure monitor with a compact design and clear display allow you to optimally monitor your blood pressure. It measures your blood pressure quickly and easily, storing the results and displaying the progression of readings together with the average. A warning is issued for anyone suffering from cardiac arrhythmia or for possible disturbance in heart rhythm. The recorded values are classified and evaluated graphically. Applicable for upper arm circumferences from 22 to 35 cm and XL cuff (30 to 42 cm) available as an accessory.