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Posted: **Mon Nov 26, 2012 5:18 pm**

I did some googling for you. What you want is called a temperature comparator circuit.

Posted: **Wed Nov 28, 2012 5:41 am**

Thanks Steve. I'll check it out and see if it's within my realm to do. I'm not as smart as a feller like yourself.

Dual temperature control for fan possible?