Easy to Use Relax down, wrap the cuff around your upper left arm The cuff lies about 0.78-1.18 inch above the elbow and palm is upwards Be able to fit 2 fingers between your arm and the cuff Press the "SET" button to select your USER ID ("1" or "2") and press the start button Read more Adjustable Large Cuff Blood pressure cuff, eqquipped with adjustable D-ring to improve accuracy, is suitable for adult arm 8.6 -16.5 inches (22-42 cm) in circumference. Double User Mode The bp monitor keeps records for 2 users with readings independantly. 2 users supported, 60 records per user. One-Touch Operation Only press the "Start" button of upper arm blood pressure monitor to measure your blood pressure Read more Delete Users Data Press "SET" button to select the user ID "1" or "2" in shutdown state. Press "MEM" button to get memory mode. Press "MEM" plus "Start " button for about 4 seconds, the data of user ID "1" or "2" will be deleted . Power Supply Methods This bp monitor, operated by 4*AAA batteries or USB cable, is convenient to use. Average Value measurement The BP monitor, will calculate the average data of the lastest 3 measurements automatically, helping you judge your blood pressure condition better. Read more Read more blood pressure monitor blood pressure monitor blood pressure cuff blood pressure monitor blood pressure monitor Cloor