Features: A CLINICAL ARM BLOOD PRESSURE MONITOR EASY TO READ AND USE: This monitor comes with a large LCD Display Screen making your reading more easy and simple anytime. This monitor is the perfect tools for checking the systole and diastole of your blood pressure (ups and downs heart rate) with a single touch of a button. The Color guide according to classify for assessing blood pressure level THE BEST INDICATOR AND ADVISER OF HYPERTENSION: This monitor help you to record all your hypertension indicator accurate heartbeat.It only gives you the most reliable reading as to whether or not you have a higher blood pressure or lower blood pressure than the normal one RELIABLE AND ACCURATE RECALLS THE 3 LAST READINGS- ADVANCED AVERAGING FEATURE MONITOR: For one user 90 storage of memories with data (date and time) and for two users allowing you to review anytime the last 180 readings. Advanced Averaging feature automatically displays the average of up to the last 3 readings taken in several minutes ago PORTABLE, QUALITY AND SIZING: The device is small size, portable and easy to take measurements anytime and anywhere. T One Size Fits All Cuff. This automatic inflating upper arm cuff is 22-32 cm circumference Description: Measurement Range: BP: 0~299mmHg; Pulse: 40~199 beats/min Average function: Last 3 times of measurement Resolution: 1mmHg Accuracy: Pressure: 3mmHg , Pulse: 5% Sensor: capacitive pressure sensor Materials used: ABS+LCD display Power supply: DC:6V(4*AA) not included Battery Life: 300times Test method Oscillometric method BacklightLCD blue backlight Working Condition: Temperature: 5C~40C; Humidity