99-set memories with date and time function Automatic measurement of Systolic, Diastolic and Pulse Mentod of measurement: oscillometric Range of measurement: 0-300mmHg, 40-199 beats/min Accurancy: +/-3mmHG, pulse +/-5% Deflation of pressure: automatic air release control valve Operating temperature: +10C to +40C, 30-85%RH Storage temperature: -20C to +50C, 10-95%RH Power supply: 2x "AAA" Alkaline batteries Adjustable cuff size: enables a wide range of wrist circumferences. Unit size: 70x72x29mm Accessories: storage box, 2x"AAA" Alkaline batteries Please contact us with the following emial address: hglsz-3 at 163 dot com contact person: kelly gao skype: kelly666high