Where are the internal temperature sensors on a Contura?

[[Jo...]]

Doing some work related to lab temperature, and have pulled the thermal_csv logs from the controller. The controller logs 4 temperatures labeled: CPU, T50, T60, AK_LE0

I am guessing that two of the sensors are in the controller box and the other two are on the scales/granite somewhere. It would be very convenient to know exactly where the sensors are physically located. 

T50 and T60 both read very close to room temperature, but T60 is always a few degrees warmer.