Fully automatic, one-button operation is easy to use for at-home monitoring. Clinically accurate readings. Large LCD display indicates reading progress and systolic, diastolic and pulse results simultaneously with date and time stamp. 60-reading memory bank. Hypertension Indicator provides an instant comparison to standards set by the World Health Organization. Irregular Heartbeat Detection alerts the user to an irregular heartbeat during measurement.Includes: monitor, adult or large adult arm nylon cuff, zippered storage case, AC adapter port, 4 AA batteries, detailed English/Spanish guidebook, quick start guide and blood pressure reading log. Latex-Free. Adult size cuff fits arm circumference: 11-3/4-inch - 16-1/2-inch. Large adult size fits arm circumference: 16-1/2-inch - 18-7/8-inch.