Ooops, I did it again. Bought another.
This one is the later model, but spares / repair, so I picked it up and started evaluating what repairs would be required / possible. Everything seems to be working, but I'm not convinced that the HC measurement is working correctly. I was told water had damaged the circuit board, but after dissasembly yesterday, I can't see any obvious evidence. I have ordered some bits to fix some basic hardware issues, and turned the inlet filter round so the flow arrow is in the right direction

Any way, what this is has confirmed is that my older model has been upgraded to the later model, which means PC, gas module, software. It also means I have something to calibrate against. I'm delighted to say that the diesel smoke meter, which is the same on both items, is not only fully functional, but is actually calibrated until Nov '26. Battery & bluetooth antenna problems solved

The Dame Enda is with me today, to deal with what I think is a broken wire in the loom, so I thought I would put her through the MOT procedure.
These Saabs really are clean when running properly. She sailed through, with 0 hydrocarbons and 0 CO on the fast idle test
Here's a picture of the new one