Sanitas SBM 21 - Upper arm blood pressure monitor The upper arm blood pressure monitor for safe measuring at home – with the SBM 21. The integrated arrhythmia detector warns against possible disturbances of cardiac rhythm. Using the WHO classification, customers receive clear feedback regarding their blood pressure measurements. A large memory and the additional calculation of average values help provide optimal control. WHO* indicator - Arrhythmia detection: warning in case of possible heart rhythm disturbance • 4 x 30 memories with average calculation of the last three measurements Fully automatic blood pressure and pulse measurement on the upper arm With WHO* indicator (classification of values according to WHO* guidelines) Warning in case of possible heart rhythm disturbance Average calculation of the last three measurements Automatic pressure preselection and deflation Huge, easy to read LCD display With date and time With battery changing indicator Cuff size for upper arm circumference 22 - 36 cm Rapid measurement period Medical product Art. no.: 652.31 WHO = World Health Organization