The UA-651 Blood Pressure Monitor is built with professional quality associated with the A&D Medical name, but it is designed for home use. This digital blood pressure monitor features simple one button operation and an easy-to-understand screen that displays your systolic, diastolic and pulse rate. Up to 30 measurements can be stored in the device's memory. The UA-651 blood pressure monitor has been clinically validated to meet American National Standards Institute requirements and has a Pressure Rating Indicator that lets you know if your blood pressure is high, low, or normal (according to US JNC7 guidelines). When taking your BP, the blood pressure machine's irregular heartbeat detection will also alert you in the presence of an irregular heartbeat while still providing an accurate reading. The durable, wide range upper arm blood pressure cuff is not made with natural rubber latex and fits most arms, from 8.6" to 16.5" circumference. IN THE BOX: A&D Medical upper arm blood pressure monitor, a medium blood pressure cuff, 4 AA batteries, a bilingual instruction manual, and a bilingual quick start card. NEED HELP Our dedicated customer satisfaction team can be reached at (888)726-9966, and they can answer any questions or concerns you might have regarding your device. ABOUT A&D MEDICAL: A&D Medical and LifeSource by A&D Medical are doctor recommended brands of health monitoring devices designed to help patients and their families track and troubleshoot with their doctors, all from the comfort of their homes. The technology in the blood pressure monitors, activity monitors, scales, thermometers, and smart devices help make keeping track of your health easy.