Display: Digital display<br>Measurement: Oscillometric method<br>Measurement range: <br>Pressure: 0 - 299 mmHg<br>Pulse: 40 - 180 beats/min<br>Accuracy<br>Pressure: +/-3 mmHg<br>Pulse rate: +/-5% of reading<br>Inflation: Fuzzy-logic controlled by electric pump<br>Deflation: Automatic pressure release valve<br>Pressure Detection: Capacitive pressure sensor<br>Power Supply: 4 AA batteries 1.5V or AC/DC adaptor (optional, 6V 4W)<br>Battery Life: Approx.1500 measurements, with new alkaline batteries<br>Operating Temperature / Humidity: +10oC to +40oC, 30% to 85% RH<br>Storage Temperature / Humidity: -20oC to +60oC, 10% to 95% RH<br>Weight of main unit: Approx. 340g w/o batteries