Keeping a regular check on your blood pressure levels need not be a difficult task. A&D Medical Talking Upper Arm Blood Pressure Monitor with Medium Cuff is the easiest and most reliable way to keep track of your health at home. The medium blood pressure cuff comfortably fits upper arms measuring 9.0"- 14.6" (23-37 cm) in circumference. TriCheck mode averages 3 consecutive readings as per medically recommended guidelines. This portable BP monitor measures your systolic and diastolic blood pressure and pulse rate. This BP machine also includes a pressure rating indicator and irregular heartbeat detection. The results with clear, oversized numbers are displayed on the easy-to-read digital LCD screen. This BP machine can store and recall up to 90 readings. The AHA recommendations for taking your BP are as follows: Sit quietly while taking your blood pressure. Rest for 5 to 10 minutes beforehand. Keep your legs uncrossed and feet flat. Sit with your back straight. Rest your arm on a table so the cuff is at heart level. A&D Medical's Upper Arm Blood Pressure Monitors have been rigorously tested and validated by an independent party to meet global clinical standards and protocols.