What is needed on a Digital Controller

[mark]

Just for my current purposes want to monitor and control pH and since doing that, replace the timers at the same time, can't imagine much more. Just trying to get an idea if units with all the functions are really used or just nice to have (and get an argument ready for the wife if I buy myself a Xmas present)

Originally Posted by Psyire

For example you said your heater runs on it's own thermostat... well how many people have had those fail and cook or freeze their tank? Atleast combined with a controller, it will shut it off, or vice versa. (and alarm if your temp is out of whack)

The Reefkeeper has a temp probe and controls a heater through one of the switchable outlets. Shuts of lights and can turn on a chiller if over temp as well.