I tested this controller (at least the one I got) through all it's temperature settings using both a digital and analog thermometers. I like to cook ribs on my grill at 225 degrees for about 4-41/2 hours. To get that temp I had to set the dial at 180 degrees. The thermometers inside said 225 degrees, the digital readout on the controller said 270 degrees. While I didn't pay 150 dollars for this controller, I'm hesitate to give it any more than two stars.
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