Product parameters:arm blood pressure monitor Brand: OLIECO Size: 98*130*55mm Screen size: 57*67mm Wristband: 22~32mm Display mode: LCD screen Measurement method: oscillometric method Power supply: DC6V 4 AAA dry battery (not included) and USB plug cable (included) Measuring range: (20-280) mm Hg / (2.7-3.7) kPa (blood measurement), (40-160) times / min (pulse rate) Accuracy: blood pressure ± 3% pulse rate ± 5% Normal working temperature: 5℃~40℃ Moisture: 10%~93% Working pressure: 85kPa~105kPa Working and storage air pressure: 50kPa~105kPa Air leakage device: exhaust valve Storage group: 99 sets of storage (2 persons) Quick exhaust method: electric exhaust valve Air leakage: exhaust valve The result shows: high pressure/low pressure/pulse feature: ※The home health automatic sphygmomanometer is easy to operate at home. ※LCD Monitor ※English voice, full guidance, intelligent recognition voice broadcast. ※Three-color screen backlight prompts, can accurately measure blood pressure. ※Even in a dark environment, the backlit screen can accurately see the measurement results. ※Measure the heart rate to determine if the heart rate is normal. ※Number of storage groups: 2 * 99 storage data. ※Quickly measure systolic blood pressure, diastolic blood pressure and pulse. ※Intelligent automatic shutdown function, it can automatically shut down for 1 minute without any operation. ※Accuracy: blood pressure ± 3% pulse rate ± 5%.