Test Scope :Pressure: 0-299mmHgHeart Beat: 40-200/minuteTest Accuracy:Pressure +/-3mmHg Heart Beat +/-3%60 store groups memory measurements3 minutes automatic power saving deviceIntelligent device debugging， automatic power to detectLocal tests for: wrist circumference as 135-1 95mmLarge-scale digital liquid crystal display screenHigh-accuracyTypical Blood Pressure monitors are big， bulky， and nearly impossible to usewithout assistance. Just use the Velcro straps to easily secure Monitor toyour wrist and push the blue button. In less than one minute you��ll havesystolic blood pressure， diastolic blood pressure and your pulse rate. Thedisplay is large and easy to read.Specification:Display: Digital LCDSystolic & Diastolic PressureLarge， Easy to Read DisplayPower Supply: DC 3V AAA battery x 2 (NOT included)Product Size :70 x 72 x 23mmPackage Size :90 x 85 x 50mmHumidity and Temperature for Use: Humidity30%--80%RH Temperature 5��-40 ��Sevice Life: About 10000 TimesOriginal box: NONet weight: 85gPackage weight: 119gColor: WhitePacking content:1 x Digital Wrist Blood Pressure Meter