Software version V 3.0 and earlier. Part Number Part Description CS08651, Capnostream20 with Nellcor pulse oximetry module CS08653 Capnostream20 with Masimo pulse oximetry module CS08657 Capnostream20 with Nellcor pulse oximetry module and printer CS08659 Capnostream20 with Masimo pulse oximetry module and printer