Built on the vPad platform, vPad-O2 is user programmable so new sensors can easily be added in the field without needing to send the unit back to a service centre for upgrading. Being part of the vPad-A1 family, vPad-O2 can be upgraded to include a Multi-Parameter Patient Simulator (vPad-PS) and/or a NIBP Simulator (vPad-BP).