I see what you mean from the calculator but I’ve never had an issue with over-carbonation let alone a bottle bomb. That said, I’ll change my process, this makes sense.
I’m not sure I follow why you want to know temperature unless you are talking about correcting a hydrometer. What you care about is the terminal gravity, the kit should tell you what the beers typical gravity is when fully fermented. You measure that with a hydrometer, take the temperature...
I doubt hooking it up wrongwould hurt anything as long as it was just inputs. Good point on length of the red leads, iactually all of them should be the same. The black lead carries current and is part of the measurement; one red lead supplies current, the other is to measure.
Type K is the default, it’s a thermocouple so generates millivoltage as temperatures change. RTD is a resistive temperature device, it’s a resistor and all resistors change some with temperature. You need to use the right RTD too. Your controller may want a different calibration curve. I...