Shark bait,
When looking at the kit lists, there are only two controllers that are in the kits, entry up to advanced plus has a ProfiLux Plus II controller and from professional upwards has a profiLux plus II EX controller.
Whats the difference?
The EX has an onboard expansion card pre installed that provides redox, salinity a 3rd level port and L5L6, this allows the 3 standard expansion ports to remain free, giving a larger scope for future upgrades. And of course the plus II can have this EX expansion fitted to it as an addition at any time also.
If you look at the kits lists the differences are what level of accessories are included, not a difference in controller (other than what is mentioned above)
ALL ProfiLux's that we market in North America come with Temperature control (both heating and cooling control) as standard, so no matter what ProfiLux kit you choose from our dealers you WILL get this feature to run the new chillers
Hope that helps
Best wishes
Michael