Model: DXJ-230 Upper arm type digital Blood Pressure Monitor Measuring method: Oscillometric method Accuracy: Pressure value: ± 3mmHg Pulse: ± 5% Measurement range: 40 240mmHg Performance Index: LCD digital Display Manual inflating, automatic deflating. Adult Cuff: fits wrists 22-33cm Latex/latex free bulb, Nylon cuff, dual tube, Mermory: 120 groups for two person Power supply: 4 AA Battery Dimension: 128mmx104mmx46mm Package quantity: 20pcs Package Size: 320mmX300mmX380mm Weight: 11.8kg Suitable for clinic and family. CE 0197 approval