- Digital Arm Blood Pressure Monitor ** Large Display. Convenient Storage. Smart Features. Reliable Results. ** The CITIZEN- Digital Blood Pressure Monitor is your reliable and easy-to-use home health companion. It features the largest 4-inch LCD display on the market, ensuring clear and effortless reading of your blood pressure and pulse. The upper arm blood pressure monitor utilizes advanced oscillometric method for quick, accurate, and automatic one-touch measurements. Key features include: • 90 memory recall functions with the last 3 readings average for tracking your health trends • WHO-based hypertension indicator for dependable blood pressure classification • Irregular heartbeat and body movement detection for accurate and trustworthy results • Convenient cuff storage holder, with optional large cuff (32.0 - 42.0 cm) and AC adapter for ease of use • Quiet, fully automatic inflation and auto power-off to conserve battery life • The CH-456 combines accuracy, convenience, and comfort, making it an essential device for anyone monitoring cardiovascular health at home.