Product net weight:240g Product size: 136*94*61mm Range of armband: 22¡«32cm Armband weight: 123.5g Packing size: 175*135*90mm Display screen: LCD digital display screen Range of measurement: Blood presser(0~280mmHg),Pulse rate(40 ~ 199 times/min) Pressure mode: Pump pressurized automatically Pressure reduction way: Solenoid valve controls to reduce pressure Measurement error: blood pressure¡À3% ; heart rate: ¡À5% Memory capacity:90 groups of measurement date and time can be memorized