Display system: Digital display system/LCD 3 digits 1. Measuring method: Oscillometric method 2. Power source: " AA" batteries 1.5V×4 3. Measuring range: 0-280mmHg( Pressure); 40-200pulse/minute(pulse) 4. Accuracy: ± 3mmHg (Pressure) ± 5%(Pulse) 5. Pressurization: Manual pressurization 6. Deflation: Manual release 7. Automatic power off: To be automatically cut off after 2 minutes of non-use to save energy 8. Operating environment: 10-40℃, RH≤80% 9. Storage environment: 0-40℃, RH≤80% 10. Dimension for packing: 198(L)×127(W)×98(H) 11. Gross Weight: Approx. 630g