Digital filter technology for accurate measurement - uses a sensor to detect and isolate only the essential pulse oscillation (helps eliminate other noise factors and over-tightening of the cuff on the wrist). Flash warning system for hypertensive readings - readings above 139 on Systolic or 89 Diastolic will automatically flash on the LCD screen.
Automatic memory feature allows user to capture 90 readings and save them to track the readings over time. One touch operation - easy to use! Large LCD display shows both blood pressure readings and pulse rate displayed simultaneously. Approximate cuff circumference range: 7.75" - 15.75". 4 AA alkaline batteries included.