The BM54 Bluetooth Upper Arm Blood Pressure Monitor allows for accurate tracking of blood pressure measurements using innovative bluetooth technology. Data will seamlessly be available on your chosen device for easy accessibility. The BM54 features a large, easy to read display with 2 x 60 memory spaces and an average value calculation of all stored measurements including morning & evening blood pressure for the last 7 days. The colour coded traffic light system allows for easy interpretation of values and, with fully automatic inflation/deflation, the unit will alert users to arrhythmia detection with reliable accuracy. Suits upper arm circumferences of 22 - 44cm. Also features date and time, auto switch off and signal in case of application error. The BM54 is kept safe in a zip lock storage case with easy portability. 5 year warranty. German designed and engineered.