Also not exactly hard to find: well known brand, first page on Amazon for kettle electric temperature control, Wirecutter "Also great" recommendation for electric kettles, ...

Dial is on the base. My kettle lives on a high shelf, because kitchens in Japan are not exactly famous for the countertop acreage. :)

I’ll probably buy this one one I get back to the US, though.

I also like that OXO was a brand founded on accessibility: https://en.m.wikipedia.org/wiki/OXO_(kitchen_utensils_brand)