I ended up getting the 3" dial temp. gauge from cabellas, wont be in for 10 days, I built my smoker this last weekend and already smoked some polish sausage, it took longer than I wanted because the temp was lower than I wanted hovering around 140 degrees, I put in another hot plate and the temp went to 180 degrees , enough to finish the smoking process, a good first time test, I ordered a new double burner electric unit for the next test.