Originally Posted by
h20poloman
What size is your tank and how much equipment are you planning on controlling? I'm not charging that much more for the RK Elite and that will allow you to control a lot more down the line should you ever upgrade or want to control a variety of equipment/probes, etc. Dave Morris is one of our resident Digital Aquatics gurus and could likely answer all your questions and more. If you are just looking for something basic to control when your lights turn off and on, show your temp and ph and possibly use it to control dosers the RKL would be more than fine. You can't do anything with just the head unit alone. PC'4 are the power strips - they have 4 outlets. An SL1 module is needed to plug in probes for temp and ph. The SL2v2 added a salinity probe option. Check out the digitalaquatics website for all their offerings.
I'm not sure what the max capabilities are of the RKL but I think for the Elite you have more options that any reefer would likely need. I used a total of 5 PC'4's on my 248g reef to control everything from halides, T5s, fans, Skimmer, powerheads, return pump, light rack fixture, etc.
. I can't remember if it's only capable with the elite or not...I'd think the DA website can confirm or Dave Morris can chime in. I only used it with my elite. By the way, Rudy bought my SL2v2 so it has been sold. You want the SL2v2 - the original SL2 won't work for Salinty...it's basically obsolete unless you want to use it just for temp/ph.