BLOOD PRESSURE MONITOR MAIN FEATURES: > Measures Blood Pressure and Pulse from the Wrist > 80 Memories Function with Date and Time Display > Large and Clear LCD Display > Automatic Power Off Function > Memory Scan Function > Low Battery and Error Detection Function SPECIFICATION: Display Liquid Crystal Digital Display Measurement Method Oscillonmetric Method Pressure: +/- 3 mmHg or 2 % of reading Pulse: +/- 5% of reading Memory Capacity 80 Memories with Date & Time Display Power Supply 3V DC (AAA alkaline batteries X 2) Battery Life Approximately 250 usage Unit Weight Approximately 105 grams (Battery Excluded) Cuff Size Wrist Circumference Approximately 5.25~7.75 inches Unit Dimensions Approximately 70 x 72 x 23 Accessories Storage Case Package Content Instruction Manual and 2 AAA Batteries