Reef Angel Forum

If I buy the Reef Angel Controller and I want the Wifi attachment and Salinity monitored in addition to PH and TEMP.
Do I need an expansion hub too in order to do this or does the Wifi attachment not use up an expansion model spot?

Also, later I will get an RF expansion too. (so I know at that point I will need the expansion hub)
But, If that is the last expansion I will be doing is the standard controller fine or will I need the plus version?

Regardless of plus and standard you are fine with wifi+salinity.

When you are ready for rf you will need an expansion hub. Same for both models.