Beurer's BM54 Bluetooth Upper Arm Blood Pressure Monitor makes it easy to keep tabs on your health. With its large easy-to-read XL display and fully automatic measurement checking your blood pressure is a breeze. The monitor stores 60 readings for each of two users so you can track your progress over time. Plus innovative Bluetooth technology lets you sync your data with the Beurer HealthManager Pro app on your smartphone. The BM54 even detects arrhythmia and comes with a handy storage bag. Cuff fits arms from 22-44 cm. 5-year manufacturer's warranty included.