Masimo is currently in litigation with hemocue on this particular product due to alleged false claims on their accuracy. Had an interview with their regional manager, Mike Smits. A phone interview that turned into a non stop infomercial on the Pronto, could not get a word in on any relevant experience I had or what I had to bring to the table. D not want a manager that sees everything as a one way street any only sees things through his eyes which leads to another micro manager that probably came from so far up in Minnesota that he is not in touch with reality. Good luck with this one!!