Model: Dxj-210 (dual use type) LCD instead of mercury,no pollution. Easier to read Measurement Method: Auscultatory method or Oscillometric method Accuracy: Pressure Within±3mmHg Pulse: Within±5% Battery Type: 2 AA Batteries Dimensions:Monitor: 360X96X66mm Cuff for upper arm: 22-33cm Power consumption display Power-off automatic function CE approved,ISO13485,ISO9001 Obtain the People's Republic of China Patent Utility Model Patent No.:ZL2006 2 0031 103.5 Design Patent No.:ZL2006 3 0135722.4 Suitable for hospital,clinic and family