Features High-tech measurement technology to monitor blood pressure from the arm – all with the push of a button Extra-large LCD display of 84.1 X 55.1 mm provides excellent display clarity and enables easy reading Automatically alerts the user when the heart rhythm is either 25% faster or slower than the average rhythm Automatically indicates WHO blood pressure classification after the completion of each measurement Automatic memory function records the last 120 measurements in 4 groups for efficient and simplified tracking Visually indicates when the battery has been discharged below a specific level Automatically calculates the average of last three readings stored in mem