Under $100
Wireless cooking thermometer
https://store-us.meater.com/products/meater-plus
Since I'm blind this allows me to cook with out worrying I'll eat under cooked food.
Under $1000
Meta Ray-ban glasses.
https://www.ray-ban.com/usa/ray-ban-meta-smart-glasses
I find using them as headphones to be a better option then transparency mode when using my phone. The Meta AI is also pretty good at recognizing flavors of bottles and types of food in packaging.
Even for people with good eyesight, an instant read thermometer is a game changer. Completely takes the guesswork out of cooking meat perfectly, also excellent for cakes, potatoes, and more. There are very decent ones for less that $20.
I have one of those but don't use it that often. I tend to cook burgers which work better on the grill. While I could cook sausage with it it's easier to do it on the grill to get a char. I do like it for chicken and stake though.
The advantage of this one is that I know it works with an app on my phone. ALso it's my understanding that instant read ones can't stay in the food while it cooks? This one can handle temperatures over 500 degrees farenheight.
For oven cooking I have one with a probe and a display that's outside the oven; though I rarely use that, and just open the oven and stick the instant-read. I can't say I have any interest in stuffing around with my phone while I'm cooking.
Related to this, I bought an oven thermometer a while ago - turns out my oven claims it's done pre-heating about 15 minutes before it actually reaches the target temperature. And it's a pretty new oven so this isn't an age thing. Food has come out more consistent since I've started giving it more pre-heating time.
