Digital sphygmomanometer,blood pressure monitor SPECIFICATIONS: Measurement Method:Oscillometric system Display Type:Digital LCD 34mmx46mm Measuring Range:Pressure 30-280mmHg Measuring accuracy:Pressure &le±3mmHg Pulse rate range: Pulse 40-199 p/min Pulse rate accuracy: Pulse&le5% OperatingEnvironment: Temperature10- 40°C Relative Humidity&le85% Power source: DC 6V 3W 4xAA Batteries Cuff size : 505mmx140mm Machine size:108mmx128mmx87mm Weight: 600g