1. Display system: Lcd screen digital display 2. Measurement mehod: Oscillometric method 3. Pressure display range: 0-300mmHg (0-4-Kpa) 4. Measurement pressure: 40-240mmHg (5.4-32Kpa) 5. Pulse rate: 40-160 Beats perminute 6. Accuracy: Pressure within ± 0.4Kpa (± 3mmHg) 7. Pulse rate : Within ±5% 8. Puff: Automatism exhaust 9. Deflate: Automism exhaust 19. Pressure detect: Silicon sensor 11. Memory: One Seven groups memory 12. Power supply: Four (AAA) batteries 13. Operation range : Temperature10-40℃ Humidity 30-75%RH 14. Storage: Temperature -20- +60℃ Humidity 10-95%RH 15. Weight : 0.7kg ( Excluding pressure coff and batteried) 16. Dimensions: 156×104×58(cm) 17. Pressure cuff: Fit for arm suround 22-33cm