The Beurer Blood Pressure Monitor wrist BC 57 provides fully automatic measurement of blood pressure and heart rate at the wrist. The device uses an innovative connection between a smartphone and the blood pressure monitor. Measurement data can be checked using the Beurer HealthManager app, website and computer software. The BC 57 has a display of the average of all stored readings and morning and evening blood pressure for the past seven days. It has memory for two users, with 60 memory locations available per user. The device is equipped with arrhythmia detection, which recognizes and displays possible cardiac arrhythmias during the measurement. The risk indicator shows a classification of the measurement results with a coloured scale. The blood pressure monitor is suitable for a wrist circumference of 14 to 19.5 cm and comes with batteries and a handy storage box. * Power supply Works on Battery operated * Type of measurement Wrist * Cuff size 14 - 19.5 cm * Measurement method Oscillometric, non-invasive blood pressure measurement, Fully automatic * Measurement method Oscillometric non-invasive blood pressure measurement at the wrist * Measurement range Systolic minimum 60 mmHg- maximum 260 mmHg * Diastolic minimum 40 mmHg - maximum 199 mmHg * Heart rate minimum 40 Beats/min - maximum 180 Beats/min * Average calculation Yes * Memory Memory locations (per user) 60 * Number of users 2 * Functions WHO classification, Arrhythmia recognition, Error message applicable, Automatic pressure pre-selection, Automatic vent, Automatic shutdown * Connection Bluetooth, App (Android), App (iOS) * Display / display Date, Time, Low battery indicator * Material Plastic * Features * Cuff pressure: 0-300 mmHg * Measuring pressure systolic: 60-260 mmHg * Measuring range diastolic: 40-199 mmHg * Accessories Included 2x 1.5V AAA batteries, user manual, Storage box * Dimensions Width: 78 mm x Height: 60 mm x Depth/length: 23 mm * Weight 96 grams.