Descriptions:Display screen: LCD digital display screenMeasuring range: blood pressure 0~280mmHg, pulse 40~199 times/minutePressurization mode: automatic pressurization by air pump Pressure reducing method: solenoid valve control pressure reducingMeasurement error: blood pressure 3% heart rate 5%Memory capacity: 90 groups of measured data and time can be memorizedPressure sensing: semiconductor pressure sensorPower supply: 2 AAA batteries Measurement interval: 1mm HgOperating temperature and humidity:+10 ~+40 /40%~85% R.HStorage temperature and humidity: - 20~+50 /15%~90% R.HWrist band range: 135~195 mmProduct featuresOriginal imported chip and converter, high measurement accuracy and long service lifeIntelligent simulation test process Rapid measurement of systolic blood pressure, diastolic blood pressure and pulseClear and visible large-screen LCD digital display Automatic memory of 90 groups of measurement resultsIntelligent automatic shutdown functionEach group of measurement results can be queried in sequence Package Includes: 1 x Wrist Type Blood Pressure Monitor Kit 1.Actual color may be slightly different from the image due to different monitor and light effect. 2.Please allow 1-3cm deviation due to manual measurement.