I need little bit more detail of Apex.... Which Apex is it? Very nice.... Love to have something like this.... How much it cost you? Sorry for too much question....
I considered several controllers and have to admit I was even bias to another unit until I put together the things I wanted in a system. I priced out 4 or 5 units with modules to meet my wants/needs:
starting or minimal requirements:
Internet read access - to see whats going on
Internet write access - to make changes when I'm away (and that's a lot)
email alarms
pH & Temp control (as a minimum)
fully programable
LED dimmer control
feed modes
cost competitive and reliability
secondary future considerations:
probe expandability (multible PH)
ORP control
digital input/outputs
flexible timers (weekends, weekdays, other)
natural timers (moon, sun, seasonal etc)
alarms
expandability
In the near future I will be adding another EB8 (power strip) and a I/O box to do the following:
1) additional LED lighting with dimmer control (base unit can do 4)
2) audible alarms for pH, temp and water levels (already built in just need to program) I already get email alarms
3) float switches (sump low, sump high, RO/DI low, skimmer collection full, leak detection) to alarm
4) Ozone control using ORP probe
5) additional temp control for sump fan on/off
Later on I'll end up getting another probe unit for:
1) Ca reactor (currently on a seperate controller for pH with on/off over ride from the APEX) with a pH alarm to let me know if the Co2 bottle is used up or line clogged.
I also want to hook up a auto feeder for dry food but this will require making modifications to a stand alone unit to be wired to the I/O box
the standard APEX unit beat all others on price for both my initial needs and secondary needs
The initial purchase of the Base Unit w/o pH probe was $455 US and shipping was free
I'll end up spending another:
$150 for the EB8 power bar
$40 for the i/o breaker box for float switches
$75 for the additional probe module (pH, Temp & ORP)