Welcome to our store! Our electronic home blood pressure monitor is compact and portable, allowing you to measure your blood pressure anytime, anywhere. The arm-type design ensures accurate readings by requiring you to remove your sleeve or sweater. This blood pressure monitor supports data storage for two people, with each person able to record 99 groups of data. This convenient feature allows for easy comparison and observation of historical data. The LCD display shows clear numbers for seniors, making it easy to view systolic pressure, diastolic pressure, and pulse rate. The separate display of systolic and diastolic pressure allows for a quick assessment of whether data falls within the normal range. With larger memory storage and irregular heartbeat detection, this blood pressure monitor can detect irregular heartbeats and display the average of the last three measurements. It also features a clock function, allowing you to easily set the year, month, day, hour, and minute yourself. The low power detection function alerts you when the battery is running low, so you never miss a measurement. Specifications: Color: White Material: ABS + PC Arm Circumference Measurement: 220-320mm / 8.7-12.6in Measurement Range: Blood Pressure: 20~280mmHg, Pulse Rate: 40~200 times/min Measurement Accuracy: Blood Pressure Value ±0.4kpa (±3mmHg), Pulse Reading Value ±3% Working Temperature: 10°C ~ 40°C Working Humidity: 40% ~ 85% Storage Temperature: -20°C ~ 50°C Storage Humidity: 15% ~ 90% Display Size: 41 * 61mm / 1.6 * 2.4in Voltage: 5V Battery Model: 4 * 1.5V (4 AAA alkaline, battery not included) Product Size: 11.8 * 9.5 * 6.5cm / 4.65 * 3.74 * 2.56in Packing List: 1 * Blood Pressure Monitor 1 * Arm Band 1 * English User Manual