* USING 2 METHOD: KOROTKOFF&OSCILLOMETRIC * ONE MEMORY * EASY-READ DIGITAL PANEL * LOW NOISE PUMP * INFLATION PRESET SWITCH LETS USER CONTROL CUFF INFLATION * OPERATES ON 4 "AA" BATTERIES SPECIFICATIONS : MEASURE RANGE: PRESSURE 30－280mmHg PULSE 40－200beat/min BASIC ERROR: ≤±3.7mmHg PULSE ≤5% METHOD: KOROTKOFF & OSCILLOMETRIC POWER: DC6V 3W DIMENSION: 160 x 100 x 60mm WEIGHT: ABOUT 600g PACKING: 20pcs/Carton