This simple, fully automatic upper arm blood pressure monitor gives you comfortable, quick and accurate blood pressure monitoring. Intellisense technology ensures that the arm cuff reaches the correct inflation and doesn't pump up too high.The clinically validated M2 Basic also features a hypertension indicator that displays a symbol on screen if a reading is higher than the recommended blood pressure level of 135/85 mmHg. With a clinically validated monitor, you can be assured that it has undergone tests conducted by independent doctors according to a predetermined protocol, which includes ensuring the accuracy of the measurements (algorithm) of the blood pressure monitor.When using an Omron blood pressure monitor, please ensure that the cuff size is correct. The Omron M2 Basic comes with a standard size cuff for arm circumference 22 cm to 32 cm. An optional Omron large blood pressure monitor cuff, suitable for arm circumference 32 cm to 42 cm, is available to purchase separately.Omron has been one of the leading companies for healthcare products since the company was started in 1933. Since then, Omron has been involved in health product developments including launching the very first digital blood pressure monitor for home use in 1973 and introducing the first digital thermometer in 1983.