Hello Peter,
This is a example code for how the temp sensor breakout board is connected and run: https://github.com/adafruit/MAX6675-library/blob/master/examples/serialthermocouple/serialthermocouple.pde
As you can see in this example the delay at the end is 1 second. I can change that to what ever I want. So no problem there (only the serial comm speed between the breakout boards worries me).
The highest speed for serial comm to PC is 115200bps. I am not sure if that is enough for this application.
Any thoughts on this?
Thanks