You can set it for 80 degrees but that starts the cabinet temp. I have a 6 rack digital so when I cold smoke I attach a cardboard box with a dryer vent hose connecting it to where the smoke generator sits. Temp in smoker still gets to 80 degrees except for winter months then it may hit 65-70. I am in Minnesota so usually cold smoke in winter months.
Some have made their own PID if you know anything about electricity. ( It is all greek to me). If you do a search on this site you should be able to check them out.