Here's an off the shelf for $30 + shipping. It starts at 80 degrees, but=20 I would think if you open it up, and bend slightly, 75 would be likely.=20 Or probably 80 would work, don't think the application needs super=20 accuracy. :) http://www.grainger.com/Grainger/COLUMBUS-ELECTRIC-Attic-Fan-Thermostat-2E3= 40?Pid=3Dsearch On 7/14/13 5:32 PM, Denny Esterline wrote: > H --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .