Attention: Welcome to my shop! We ship the product from China, the delivery time is 7-14 days!Features:1.Using the oscillometric blood pressure measurement,Accurately measure the blood pressure2. LCD digital display,legible3. Intelligent pressure4. WHO warning message function5. Double mode,each of the 9 set of measurements of memory6. No operation in 1 minutes automatic shutdown 7.The overpressure protectionfunction.8. An irregular heartbeat tips 9.The clock featureUsage Temperature and Humidity: 5-4 degree, 15% to 85%RHOperating temperature: 1 ~ 4 degreeDisplay: LCD digital displayMeasuring method: pulse scanning / oscilloscope assayMeasuring range: hypertension / hypotension: 2mmHg ~ 28mmHgPulse: (4 to 2) beats / minResolution: 1mmHg (.1kPa)Accuracy: + 3mmHg (+ .4kPa)Pulse: +- 5%Voltage: 3VPower Consumption: .1W Tips: keep the monitor as the same height as the heart when measurement, relax and don't move. Don't drink alcohol or coffee, eating, smoking, exercising and bathing in 3 minutes before measuring