reading-assistant showing-light sphygmomanometer

1. very small and very easy to carry
2. Green without mercury
3. accuracy can reach to ±2mmHg
4. according to Korotkoff-Souna Method
5. auto air-releasing valve and no need the stethoscope
6. can detect the systolic pressure and diastolic pressure through the regular buzzing
7. the ideal replacement of the mercury sphygmomanometer
8. for the first time,Shanghai Food and Drug Administration authorized it ot enter into hospital and clinic to measure blood pressure
reading-assistant showing-light sphygmomanometer