1. Display system: Extre-large screen with digital display system 2. Atmospheric pressure range: 0-300mmHg ( 0-40Kpa) 3. Blood pressure measuring range: 40-240mmHg (5.4-32Kpa) 4. Measuring method: Oscillometric method 5. Pulse rete range: 40-160/min 6. Measuring accuracy: Atmospheric pressure ± 0.4Kpa 7. Oversleeve: Auto crimple 8. Power source: Alternating current 220V 50HZ 9. Power consumption: ≤ 30W 10. Prndevice: Sensitive printer 11. Environmental temperature for storage: -20℃- +60℃ 10-95%RH 12. Arm belt: Arm beleaguer 22-33cm suitable 13. Machine size : 465×322×290(cm) 14. Cast currency box: user wale