Profilux II plus aquarium controller

[Slick Fork]

Thank you for the response Matthias, Nice when the producer will say "just cause it's cool" instead of making up reasons we NEED to have it!

I have another question regarding the temperature probe and it's location relative to the heater's. I have stuck the probe in my sump baffles just before the return compartment. I have my heater's right in the return compartment of the sump, is my probe location ok? Should I maybe be measuring the temperature in the display? I really don't want the wires in the display tank but maybe that would make more sense?

In the baffles, it gets to measure all the water as it passes through but now I'm thinking maybe it will always read "cold" because it's the last spot in the circuit before the heaters, and keep the heaters running non-stop. Any thoughts?