The BIOS Diagnostics Blood Pressure Monitor – with Atrial Fibrillation Screening, has built-in technology to screen for Afib. Afib is a serious heart rhythm abnormality that accounts for 15 of strokes. Once detected, it can be treated effectively. Patented MAM averaging and advanced blood pressure PC software ensure precise readings and detailed heart health analysis. This unit uses oscillometric technology to measure arterial blood pressure and pulse rate. The cuff is wrapped around the arm and automatically inflated by the air pump. The device senses weak fluctuations of the pressure in the cuff produced by extension and contraction of the artery within the arm in response to each heartbeat. The amplitude of the pressure waves is measured, converted in millimeters of the mercury column, and is shown on the display. When rested, and measuring your blood pressure at home, measurements with diastolic pressure readings above 85 mmHg or systolic readings over 135 mmHg are considered high. If you obtain consistent readings in this range, consult your doctor immediately. High blood pressure values over time can damage blood vessels, vital organs such as the kidney, and your heart. With blood pressure values that are too low (i.e., systolic values under 105 mmHg or diastolic values under 60 mmHg), consult with your doctor.BIOS Medical is the 1 Canadian Blood Pressure Manufacturer, according to 2021-2022 Nielsens Sales Data for Thermor Ltd. (BIOS Medical is a brand by Thermor Ltd). Recommended by Hypertension Canada and Licensed by Health Canada. Included: Blood Pressure Monitor, Wide Range Cuff: 22-42 cm (8.75"-16.5"), AC Adapter, Log book, and Instruction Manual. BP Assessment Indicator displays the range between which your blood pressure values lie, according to Hypertension Canada. BP Analyzer Software: A free download records and charts your readings. The information can be printed or emailed to a healthcare professional. Cuff Check Indicator: Advises when the cuff is not positioned correctly and indicates when there has been movement. MAM - Averaging Mode technology used in the device provides accurate measurements. Using three consecutive measurements, your result is calculated and displayed as a single averaged measurement on the display screen. AFIB - Atrial Fibrillation Detector technology icon is displayed when atrial fibrillation is detected during a blood pressure reading. Stores 200 measurements with time and date.