Specification Measurement Method: Oscillometry Display: 9 digits LCD display, show systolic/diastolic/pulse rate simultaneously Cuff Pressure Range: 0 to 300 mmHg Measurement Range: 40 to 260 mmHg Pulse:40-160/minute Accuracy: Pressure ±3mmHg Pulse ±5% of reading Pressurization: Automatic inflation by air pump Deflation: Automatic exhaust Rapidly Deflation: Automatic deflation by electromagnetic valve Pressure Detection: Semiconductor Pressure Sendor Power Source: AA?4 alkaline batteries Battery Life: Exceed 300 uses Memory:30 times and average Battery Management: Low battery indicator Automatic Power Off: power off Operation Environment: 10°C to 40°C 30% to 85% RH maximum Storage Environment: -20°C to 60°C 10% to 95% RH maximum Package Carton Dimensions: 635mm?375mm?140mm Carton Gross Weight: Approximately15kg Remark The DC power jack is selective Medical AC-DC adapter is selective buying