Beurer BM 27 Upper Arm Blood Pressure Monitor simplifies blood pressure measurement with cuff position control and automatic incorrect usage message, preventing errors and simplifying application. BM 27 features a fully automatic blood pressure and pulse measurement on the upper arm, with an easy-to-read display. The average of all measurements feature is enabled, values are stored in 4 x 30 memory spaces, and values are classified using a colored scale. It measures blood pressure, detects arrhythmias, alerts in case of heart problems, and monitors rhythm disturbances. For upper arm circumferences from 22 - 42 cm. BM 27 also features automatic pressure preselection and deflation, a blood pressure passport, a battery changing indicator, and comes with a storage pouch.