03-23-2013, 10:35 PM
OK, so I couldn't wait until tomorrow. As it turns out, there is an auto tune routine in the controller and after running it, the controller works like a champ. It now holds the temp within 1º of the set point. I can think of lots of uses for these little gem around the home and shop, my heat treat furnace for one, and for temp control in homebrewing. At $32.50, they are a heck of a deal.
Tom
Tom