I guess their device is something similar to the homebrewing tool that I use Inkbird to control fridge/freezer temperature. Except from the less wasting cold ai

I guess their device is something similar to the homebrewing tool that I use Inkbird to control fridge/freezer temperature. Except from the less wasting cold air, I dislike the chest freezer for food storage because it's difficult to organize and then find things at the bottom.