Features:- Accurate result detected by oscillograph- Oscillometric method, automatic inflation & measurement.- Measuring Method: Korotkoff - Sound method- Heartbeat measurement.& Irregular heartbeat detection.- 2 people (180) memory recall.- KPa/mmHg Unit exchange.- Fuzzy logic & large LCD display.- WHO Classification Indicator.- Average of the 3 most recent measurements.- PMMA faceplate (acrylic glass)- Automatically turns off(within 1 minute) to save power.Specification:- Measurement principle: Oscillograph- Cuff: Soft cuff- Cuff size: 22-32cm-Unit size: 130x100x50mm-LCD size: 63x51mm- Measurement range: pressure: 30 mmHg~280 mmHg; pulse: 40~190 times/Min.- Measuring Accuracy: pressure: +/-3mmHg; pulse: +/-5% of reading.- Power supply by: 4 x AAA batteries.- Working environment: 5 oC - 40oC (41oF to 104oF), no greater than 85% R.H.- Environmental pressure: Atmosphere pressure- Electric shock protection: Internal power unit- Safety Classification:Type B Equipment- Inflation: Automatic Inflation by internal pump.- Deflation: Automatic speed deflation system controlled by interanl electromagnetic valve- Display: Pressure(Systolic and Diastolic), Pulse, Date, Time, User symbols, Low Power Symbol, Memory Group, Mnemonic, Heart Rate- Memory: Single type 90 memories.Available Color- Blue, Grey, Purple, Green, PinkIf you have color demands of oximeter and case, please leave a message to us. If we don't receive your requirements for color, we will deliver in random color. Thanks for your understanding!Package Content- 1 x Arm Blood pressure monitor (without batteries)- 1 x Armband- 1 x English user manual- 1 x Retail boxBy aviation restrictions, batteries are not included in the package.