Automatic Digital Blood Pressure Monitor ? Measuring Range: Pressure 30-250mmHg Pulse: 40-200/minute ? Measuring Accuracy: Pressure: 3mmHg Pulse: +5% ? Memory: 199sets ? Memorized Reading Average Calculation ? Date/Time Display ? Inflation: Automatic by Electric Pump ? Deflation: Automatic by Valve ? Pressure Detection: Semiconductor Pressure Sensor ? Power Sources: AAｘ4Alkaline Battery/Adaptor with output 6V 600mA ? Battery Life: Approximately 1000 times of measurements ? Battery Management: 1-min, power-off/Low battery indicator