Originally Posted by DoubleR
We had a 2014 FC that had the SeeLevel II Tank Monitor and it was standard, not an upgrade. Our 2013 FC had the MicroPulse Tank Monitor on it that I changed out. So I think the SeeLevel II became standard in 2014, not 2015.
Thanks DoubleR, I went and looked at the 2014 Airstream sales brochures, 2014 classifieds, and 2014 "window stickers" and you are indeed correct some trailers did have the See Level 2. I also found many that had the Micropulse in 2014 also. I am guessing 2014 was the actual changeover year and so the use of the different systems was mixed in 2014. Airstream also has a tenancy to put "next model year items" in the later built trailers of the previous year as they exhaust old stocks. I have added a note to the spreadsheet identifying that.
Thanks so much for the feedback!