The Auber PID can be used for cold smoking, and can actually "automate" the process! Remember, when you isolate the element from the thermocouple, you are "fooling" the stock controller, or PID, into thinking the element needs to supply heat. Works the same for both controllers.
Here's a program I came up with awhile back, when we were talking about this very thing:
First, the Auber probe needs to be
above the cold smoke plate, not below. The reason is that you want to make the probe "think" that it's not hot enough, so it stays on. Here's how I think I'd program (everyone feel free to chime in if you think differently):
C01 250 E01 t t01 0.3 (18 minutes)
C02 0 E02 t t02 0.7 (42 minutes)
C03 250 E02 t t03 0.3
C04 0 E03 t t04 0.7
repeat up to 1 more time. If you're cold smoking something that will need more than 3 "doses" of smoke, switch the unit off at the end of t06, and back on to start the program over.
I haven't tried this program, but I'm certain it will work. Lazy Q Cheese!