So at lunch I was browsing Indiegogo projects and I saw this one here It's a wireless meat thermometer, I've seen it in some permutation or another a few times on sites like this. Apparently no one can handle wires coming out of their oven or BBQ.
I'm skeptical that this could be built cheaply, do ASIC and RF components even exists at 200C temperature ranges? I'd never thought about it so I did a little searching and saw the main market is oil drilling and probably military. The one little MCU I found from TI is $359 on digikey :)
This project claims their thermometer's communicate via bluetooth! Based on my experience I find it hard to believe such a chip exists, but maybe I just don't know any better. So anyway just trying to expand my knowledge if something exists or fuel my skeptacism of this project
Oh I also read this SE article which more or less says what I expect, but maybe things have changed.