Thermometer & body tester - self-health awareness is very crucial for each person. Do you need any handy device to keep you healthy all the time? we are so pleased to recommend this blood pressure monitor to you. Adopting advanced electronic components, this blood pressure monitor can ensure sensitive and accurate measurement of blood pressure and pulse. With a large lcd screen, it can display the data clearly for your easy reading. As long as you choose this blood pressure monitor, you will get more than you pay for. Take action now!featuresintelligent pressure 90 set of measurement data memorythe article warning the state of who blood pressure arrhythmia hint time function overpressure protection function wrapped in a good sense, it is comfortable to usespecificationsdisplay lcd digital display screen measuring method pulse scaning / oscilloscopic measurement measurement range blood pressure:20 - 280 mmhg, pulse rate: 40 - 165 times / min accuracy blood pressure: ±3 mmhg or ±2%, pulse: ±5% of measured data memory capacity each side may record 60 groups of measurement data pressurization full automatic pressurization mode decompression full automatic decompression mode air discharge full automatic rapid exhaust mode forced induction semiconductor pressure sensor power internal electric source bf group(no. 7 alkaline cell) operation temperature and humidity +10 "ƒ~+40 "ƒ(50 "‰~104 "‰), 40%~85% r.h power supply 2 x aaa battery(not included) wrist circumference 135-195mm cycle main unit dimensions (2.83 x 2.76 x 1.26)" / (7.2 x 7 x 3.2)cm (l x w)weight 7.27 oz / 206 gpackage includes 1 x automatic wrist watch blood pressure monitor white1 x user manual .