Question : Problem: Switch / Relay to turn on 110 volt AC when set temp is reached?

I have a large podium in my training room with a PC in it.  I installed a 120mm AC fan in the side of the podium, but I am trying to figure out how to make it only run while the computer is on.  My thoughts were maybe someone knows of a relay / switch where I could set a temp. threshold that would switch the fan on and off.

Any ideas?

Answer : Problem: Switch / Relay to turn on 110 volt AC when set temp is reached?

Are you looking for something like this? http://www.elkor.net/ettr.htm

Hope this helps!
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