* USING 2 METHOD: KOROTKOFF&OSCILLOMETRIC * EASY-READ DIGITAL PANEL * EASY-SQUEEZE INFLATION BULB * 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 0.1W WEIGHT: ABOUT 380G PACKING: 20pcs/carton