Oversize, easy-to-read backlit display. fully automatic operation. clinically accurate readings. displays systolic, diastolic and pulse readings simultaneously with date and time stamp. large, backlit screen displays systolic, diastolic and pulse readings simultaneously with date and time stamp. 2-person memory bank stores up to 120 readings, 60 readings for each user with average of last 3 readings. 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 with attached wrist cuff, cuff-storage half case, 2 aaa batteries, detailed english/spanish guidebook, quick start guide and blood pressure reading log. latex-free. comfortable yet secure cuff fits wrist circumference: 5-3/8 inch – 7-5/8 inch.