My CPE2 lacks the digital setting of the CPP. I put my thermometer in the chemical bottle filled with water closest to the control (which will be the developer for B&W/C41 and first developer for E6, which are most critical in each case) and tweaked the setting until I found the real point to set it for 75F (black and white) and 100F (color) and carefully marked the dial with a fine marker so it's repeatable. The dial calibration is far enough off that it's really only useful as a starting point but once you dial this in, you're good.