Features: 1. Display system: Extra-large LCD with digital display system,touch screen or button operation,60 times memories with date and time display. 2. Measuring method: Oscillometric method, automatic inflation, automatic measurement. 3. Blood pressure measuring range: 40-220mmHg 4. Pulse rate range: 40-180/min 5. Measuring accuracy: Within +- 3mmHg (0.4kPa) 6. Pulse rate accuracy: Within +- 5% 7. Machine size: 78mm*75mm*28mm 8. Weight: Appro: 107g (excluding battery) 9. Power source: 2*AAA size batteries 10. Environmental temperature and humidity for using: +5C- +40C , ≤85%R.H 11. Automatic read high .low blood pressure and heart rate value in English 12. Time showing, like a clock