This monitor measures blood presure via the wrist and gives results on an extra-large display. LCD display screen Oscillometric method measurement type 30 to 180 beats per minute pulse range +/- 3mmHg pressure accuracy +/- 5% pulse accuracy 120 memory capacity 13.5 - 21.5cm (5.3”- 8.5”) cuff size Low battery detection Automatic power off 2x AAA battery power source Product size - 7.9 x 6.6 x 2.8cm Height 7.9cm Width 6.6cm Depth 2.8cm Batteries Included? Yes Product Weight 110g