I recently found this temperature controlled relay
that had two features that set it apart from similar units found on the web.
First, it can display in F° or C°, most of the similar units, just display in C°.
Second, it is panel mount, making display and access much easier.
So I threw together this aux 12 volt temp controlled box, I currently use it to control my Endless Breeze fan.
I also use this to control my auxiliary fan for the refrigerator . It replaced the previous design that was in a box underneath the gaucho and was in C°.