I gave you a "like" there Adrian as I appreciated your succinct report. Having reviewed possibly thousands of posts on here over the years, I must say that it makes a nice change to "get it all in one go", as it were.

My only comment (well, there had to be something) is which Model No. of Welch Allyn "Connex" monitor (presumably) are you referring to? From the dates you mention I am guessing 6000 series. As we all know there have been a fair number of different versions of this monitor. We are up to the 7000 series (7500 etc.) now, I believe; and this "matters" due to the various configurations (especially SpO2) available.

If you don't inspect ... don't expect.