CARMAS blood pressure monitor upper arm CARMAS has been developing and producing digital blood pressure cuffs for many years. Arm and wrist blood pressure monitor are sold worldwide. CARMAS blood pressure cuffs for home use is individually tested to ensure accuracy, providing you the most accurate blood pressure data. Track your health at home every day. Our CARMAS blood pressure machine a must-have for every home. NOTE:Please read the user manual carefully before first using Large XL Cuff The blood pressure monitor large cuff has 8.7-15.7 inches(22-40cm) adjustable extra large cuff, suitable for standard and large adult arms. Double User Mode with 240 Records The blood pressure monitor has memory of 240 for two users (120 per user) with date and time. Very suitable for home use. Average Value Function The BP monitor equipped with precise algorithms and newly developed chips averages 3 values for a more precise measurement, providing you the most accurate blood pressure and pulse rate readings. Read more Movement Error & Cuff Self-Checking Symbol The Movement Error Symbol is displayed if you move your body during the measurement. The cuff correct symbol will be displayed if the cuff position is correct, otherwise, the wrong symbol will be displayed. It helps you to adjust your correct position. Irregular Heartbeat Checking The three hearts symbol - indicates that certain pulse irregularities were detected during the measurement. It means that you need to relax and calm down, then take another measurement.If the symbol appears more frequently (e.g. several times per week on measurements performed daily) or if it suddenly appears more often than usual, we recommend the patient seek professional advice. Two Power Supply Methods This blood pressure monitor can be operated by both battery power and USB cord,more convenient to use. NOTE: Do not use usb and batteries for power at the same time during measurement Read more Read more