BP Blood Pressure Measuring Instrument-precise Measurement

Automatic Wrist Blood Pressure Monitor USB Charge 
Product parameters ：Size :75*60*25mmWristband range: 135~195mmDisplay: LCD digital display screenMeasuring range: blood pressure 0~280mmHg pulse 40~199 times/minPressurization mode: automatic pumping of air pumpDecompression method: solenoid valve control decompressionMeasurement error: blood pressure ± 3% heart rate ± 5%Memory capacity: can memorize 90 sets of measurement data and timePressure sensing: semiconductor pressure sensorPower: Power storage lithium battery and USB data line transmissionMeasurement interval: 1mmHgOperating temperature and humidity: +10 ° C ~ +40 ° C / 40% ~ 85% R. H.Storage temperature and humidity: -20~°C+50°C/ 15%~90%R.H.
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a