About this item 【Bigger & Longer & Better】: Our blood pressure monitor with bigger LED screens give you a great visual experience, making readings clearer and you can view the results more quickly. The blood pressure cuff with velcro closures is ergonomically designed (from 24cm/9.4 in to 42cm/16.5 in) to offer precision and comfort during the measurement process. 【HIGHEST ACCURACY】: Sinocare blood pressure monitor printing precision is ± 3mmHg and the reading pulse accuracy is ± 5%. The readings taken by our blood pressure meter on the arm are equivalent to those obtained by an expert observer using the auscultation method of the cuff and stethoscope. This blood pressure monitor will give you an accurate reading of your systolic and diastolic pressure, along with the pulse per minute. 【NEED TO NOTE】: Read the blood pressure meter description and refer to the correct posture and steps before taking a measurement. Individual blood pressure also varies in one day, it is also affected by the way you tie the blood pressure cuff and the measurement position,so please take the measurements in the same conditions. The cuff should wrap correctly around your upper arm,it can't be tied too tight,with enough space to slide two fingertip underneath. 【CONVENIENCE&DOUBLE SHARING】: The one-touch switch. When not in use, it automatically turns off after 1 minute to save energy. supports two user modes, is capable of storing up to 180 data sets (90 readings for each user). If you share with your spouse or loved ones, switch between 2 users to store the indicators separately. 【WHAT WILL YOU GET】: The package includes 1 SINOCARE sphygmomanometer on the upper arm, 1*bracelet, 1*manual, 4*AAA batteries. Welcome to contact us if you have any questions or concerns. Our reliable Customer Service will be sure to reply within 24 hours and offer proper solutions for you.