For easy use as a stand alone pulse meter or attached, via, USB to the computer, using the software provided. When away from the computer the brightly coloured display will show pulse rate and oxygen levels, as well as a graph. When attached to the computer children are able to see their pulse and how it fluctuates in different situations. The software allows children to input their name, date of birth, weight and height as well as print off the of results gathered over specified time intervals. Contents: Pulse Meter, USB lead, Software and User Manual, 2 x AAA batteries required. - WAS £49.99.