GPLv3 defines a "User Product" as a:
A “User Product” is either (1) a “consumer product”, which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, “normally used” refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product.
I'm wondering if industrial HMI devices fall under this definition of "User Product". For those that are unaware, HMI devices are typically used in industrial factories and/or other commercial uses. Here are a few examples from Rockwell and Schneider.
What stumps me is the term "HMI" is quite vague. Some people would consider thermostats to be an "HMI", which typically is found into a dwelling. However, I feel like industrial HMIs are a distinct product, separate from those typically found in a dwelling. I suppose it is possible for someone to use one of these devices to control their home A/C unit, however, this feels like a significant mode of use. Am I correct in my reasoning?