The Hydros can do what was mentioned and more. I know because I am doing it with my Hydros. Below are the outputs setup for my ATO. It has minimum off time, maximum off time, Minimum on time and maximum on time settings. Mine is set that it will not go past the maximum on time. If gets to that the output will shut off. If maximum on time are maximum off time are exceeded it will send an alert. So if you DI storage empties you will get an alert. You can also add a sensor for that if you want. I do have one. In fact if my DI storage goes low my Hydros turns on the RODI filter and refills the tank. Also the ATO is controlled by the second output here on the last two screenshots using the depends on settings on the ATO output. If you want more info I have a lot in my build thread starting on page 7. i am in the process of replacing my Archon with the Hydros. The only thing remaining on the Archon now is some lighting control. Some of the lighting is now on the Hydros.I think Hydros can and will be good, but the apex has them in sheer capability and modules avail. The price point is still a challenge though. 750 to walk in the door is a steep bar tab. I guess the EL is 500 but you lose some things.