Description for Blood Pressure Pulse Monitor:Accurate result detected by oscillograph.One-touch operation.Display Pulse，Systolic Pressure，Diastolic Pressure.Irregular Hearbeat Detection(IHD).90 memories recallAutomatically power-off to help extend battery life.LCD screen display.WHO BP classification indicator.Average of the 3 most recent measurements.Specification:Product NameWrist Fully Automatic Blood Pressure MeterMeasurement PrincipleOscillographyCuffSoft cuffCuff size 290mm×72mm(+/-5mm)(11.4×2.8)inch (+/-0.2inch)Measurable Wrist Circumference RangeAbout 135~195mm (5.3~7.6)inchMeasurement RangePressure:40~280mmHgPulse:30~160 times/minuteAccuracyPressure:±5mmHgPressure:±5%Battery LifeApprox.300 times(180mmHg，1time/day，22℃)Working EnvironmentTemperature:5~40℃Humidity:＜85%RHStorage EnvironmentTemperature:－20~60℃Humidity:＜95%RHElectric Shock ProtectionInternal power unitMemory Capacity90 sets of date including date and timeInflationAutomatic Inflation by internal pumpDeflationAutomatic speed deflation system controlled by internal electromagnetic valveDisplayBlood Pressure， Pulse， Date，Time，Low Battery Icon，Heart Icon，Memory Record NumberSwitch2(ON/OFF，Memory)Size(L)65.5mm(2.6inch)(W)63.5mm(2.5inch)(H)25.0mm(1.0inch)Weight(not including battery)72g