I have a pic of the STC printed out on a banner that is standing in their booth.
Yesterday I was out near the ultralights not at their main booth in the exhibit hall. As soon as I get someplace with wi fi I will download it here. I guess the stuff is pretty expensive. Cost may limit the sales going through the roof.
Until I can post the pic of the STC letter you might be able to research STC
Import Number SG03715NY.
The letter suggests you can research models that it applies to.
Hope that helps
Eddie