Sous Vide 3D PID Controller - UPDATED

***Update December 2022***
After going to the carnivore diet, I am using my Sous Vide so much now, I sometimes need two slow cookers going at the same time. So I made another controller. During my second build, I made a couple of changes and took a few more pictures of the wiring to help others.

Cost to use: I have measured my hourly cost with a Kill-A-Watt meter for both of my slow cookers. A 270 watt 7-quart cooker and a 450 watt 10-quart cooker. It costs one US penny per hour to run either cooker at 135F. I will sous vide a 3 lbs chuck roast for up to 36 hours @ 135F. It turns out super tender.

I modified the top part of the case to eliminate the center hole for the outlet. The hole exists for a wall plate and serves no other function. Plus, the cost of wall plate screws is just stupid. The two other holes secure the outlet very well.

The PID bracket requires an M3 x 20mm screw or longer in order to secure the PID to the bottom section.

I noticed the hex nut holes in th