Just got the controller and I am trying to set it up. I have the temp set in Celsius and would like to switch to Fahrenheit.
How do you switch between the various functions? I’ve tried to press SET again and the up and down arrows and can’t seem to get beyond the temp setting.
I suppose I could work in C, but I’d like to know what the settings are on the other functions.
Thanks in advance for your help.
I’m not sure if that’s the one I have (can’t find a model number,) but on my Inkbird, if you press and hold the set button until it gives you a flashing display to adjust with the arrows, then keep repeatedly pressing the set button, it will cycle through all the parameters you can set, like temperature, differentials, alarms, and, eventually, Fahrenheit or Celsius. When you’re finished, press and hold the set button until it goes back to normal operating mode and the settings are saved. Or when all else fails, read the directions. 
Hold the set button for 3 seconds to enter edit mode. Arrows change values up or down. A quick press on set goes to the next variable. A 3 second hold on set exits edit mode.
Thanks for your help. The directions were “crap”.
I have to agree! Just got the wifi version of the ITC 308 to replace an older controller, and I’m still scratchin’ my head over that instruction sheet!