Another thanks to dsumanik for the thorough review. And to Tim for keeping us updated. Just ordered the TMS-200 to give it a whirl.

I have an Aquaero for temp and fan monitoring/control, but it's impossible to get a new one in the US right now, so wanted something different. The Alphacool looked interesting, but couldn't find much info on it, and as far as I could see, the manual is only in German (maybe that's only the online version? ). So, due to the info in this thread, went with the TMS-200.