I’ve never seen a mill like that before. It’s so tiny. It looks like he uses a hot plate for the mash, and I’m not sure what for the sparge, but it looks kinda like a turkey fryer. He also pulverizes the hop pellets with a mortar and pestle, but he admits that’s just him “being German.”
I saw a wireless BBQ thermometer similar to the one I got for Christmas. The probe was pushed down into a long stainless steel thermowell which was strapped to the inside of the pot. The probe sends a signal to the handheld unit so you always know what your mash temp.