Digital Wrist Blood Pressure Monitor LCD Screen Heart Beat Meter Wrist Cuff Accurate Automatic Blood Pressure Monitor Portable Health Monitoring

Technical parameters: Display mode: a liquid crystal display screen Measuring mode: depressurization type oscillometric method for measurement Power supply: two AAA alkaline batteries (Not included) Measurement range:(20-280)mmHg/(2.7-3.7) kPa (blood pressure) ,(40-160) times/min (pulse rate) Accuracy:±3mmHg/±0.4kPa (blood pressure) ±5%?pulse rate) Result display:high pressure/low pressure/pulse A number of memory groups: Double 99 memory groups. Low battery inspection: LCD displays the symbol "battery” to indicate low battery Arrhythmia tip: LCD displays "?” flickering to indicate an arrhythmia Overpressure protective function: automatically releases air when air pressure exceeds 295mmHg(20MS) Automatic shutdown function: automatic shutdown in one minute when there is no operation Normal working conditions: a) Environment temperature:5-40 degrees Celsius b)Relative humidity: less than or equal to 85% c)Atmospheric pressure: 85kPa ~ 105kPa Include: Machine * 1?Not included batteries?