1.Measurement range: 280 mmHg(0-37.30kPa) Pulse:40-199 beats/min2.Cuff pressure range: 0-299mmHg(0-39.86kPa) Accuracy: Pressure ±3mmHg(0.4kPa) Pulse ±5% of the reading3.Memory: 2x120 groups (double users)4.Average function: Last 3 groups average measuring value5. Voice broadcast6.WHO function 7.Arrhythmia checking: Monitor arrhythnia while meassuring the blood pressure. 8.Material: ABS+LCD display9.Power source: Internal-DC 6V(4xAAA) External-DC6V10.Size: 4.57"x4.33"x2.05"11.Cuff perimeter: 22-40CM12.LCD display: 2.48"x1.69"13.Certificate: CE,RoHS 14.Accessories: Manual+cable