We are supplying here the Digital BP Monitor has a supersized LED screen, making it easy to read daytime or night. It accurately determines both your blood pressure and pulse with the use of an easy to read digital display. A fabric cuff adjusts to fit the size and shape of your upper arm and inflates to take measurements, just like in the doctors office. It uses an inflatable air-bladder cuff, a battery-powered air pump and a pressure sensor for sensing arterial wall vibrations to measure blood pressure in an artery. The Digital BP Monitor is very accurate and useful.