The UA-767PV Plus Auto-Inflation monitor incorporates the latest technology for accurate measurements at home. The advanced features of this monitor inflates to the correct pressure each time a measurement is taken. The monitor stores the last 30 readings in memory and also displays average readings. The average reading feature automatically calculates the "average" of the total readings stored in memory. It has been clinically validated for accuracy (+/- 3mmHg and Pulse +/- 5%), so you can be confident that your readings are consistently correct. The measurement range is 20 mmHg to 280 mmHg and Pulse: 40 to 200 pulses/minute. Also included is an Irregular Heartbeat Feature that alerts the user and provides an accurate measurement even when an irregular heartbeat occurs. The UA-767PV can assist in the management of hypertension, improve patient compliance to treatment of high blood pressure, and be used as a tool in a preventative health management program. To obtain an accurate reading, it is important to use the correct cuff size. A cuff that is too small will result in a higher than expected reading and a cuff that is too large will result in a lower than expected reading. The UA-767PV includes a medium arm cuff size which has a range of 9.4" to 14.2". Also included are a trilingual instruction manual, quick start card, four week blood pressure logbook and warranty card. Both the monitor and the cuff contain a Lifetime warranty and is supported by a consumer friendly Customer Service Dept. which can be contacted at 1-888-726-9966.