This product is great and can do more stuff than I know how to do. The only downfall that is has are the directions. Trying to figure it out was really hard. Thankfully I used the videos on this website to help me along.

Will save you a lot of time and way more stable parameters. An investment but a good one and WELL worth it

This has saved me an hour and a half every night testing and dosing. Great product. All I have to do is feed the fish now once the unit was dialed in. Thank You!

Should of brought this a long time ago. Easy to setup and use. Highly recommend this product to anyone thinking of getting one. Thanks BRS

Hard to set up with the minimal instructions but good unit use it for kalk temp and lights

The product is very good once you figure out how to setup. You are only given a one page fold-out as instructions and are expected to browse the forum for help. I guess I expect thorugh instructions after spending nearly $300.

Got this unit early this week had everything hooked up working fine, until i tried to hook it up to myreef2.0 thats when everything went down hill its just been problem after problem first the modules were all reading that they were a different module when i fixed that then the pc4s started acting up and not even turning on and now i have the headunit, sl1 and just one of the pc4s working the other pc4 will not even turn on when it plugged in or even detectable in myreef and to go along with that when i connect the modules that do work all together unplugged from the wall into the usb myreef only detects the RKL nothing else and doesnt even show the serial number. I am hoping either BRS or DA will RMA this unit and give me a new one because ive just had problems with this one after following everything DA has told me to do and what all the forums say.

This product comes with ZERO set up instructions. Nothing step by step, nothing user friendly. Haven't had it installed long enough to rate the product as we are still trying to figure it out. The BRS video only covers a small portion of what this unit could be capable of doing. They have a "forum" which may be helpful if your tank is in the same room. BRS should step up and support their customers and decline to market this product until Digital Aquatics can see fit to offer a printable version of instructions.

Yeah its a pain to get it setup, but the control and saftey of this controller is well worth it. You don't have to worry about flooding your tank, cooking your fish is the heater fails, ect. And then the control u get, control your lights, use it as a wave maker, a top-off controller, reads ph, i mean with all this thing does it saves me money vs buying all of the indiviual pieces to do what it does, a lot of money.

First look at the price was steep but after I returned the timers and power strips almost paid for itself right there. Makes me feel better about having a aquarium in a apt knowing it is being monitored

I cant believe i didnt buy this in the first place. I spent a lot of time researching it. Like everyone else said, Instructions are horrible. I pretty much already knew that, so what i did is learned as much info as possible, and asked my friend "you tube" for help. Yeah still took about a day to get it going, but i love this system. I control everything, with it. Lights, skimmer, pumps, overflow switch, ato. Love it.

I couldn't imagine ever running a tank again without this! Talk about total control over everything!! Wish I had one more power strip just for my lights. Other than that... AWESOME!

price seems high, but definatly makes up for it in value & performance! the extra added protection is prefect to keep your reef tank save. knowing something went wrong before you notice it yourself gives you time to fix it instead of seeing something "dead" in you tank :)

price seems high, but definatly makes up for it in value & performance! the extra added protection is prefect to keep your reef tank save. knowing something went wrong before you notice it yourself gives you time to fix it instead of seeing something "dead" in you tank :)

This product really helped me get my aquarium on track and working great!!!

Can't imagine not having this. From sl1 module to float switches there are endless possibilities with this!

This should make my life easier and seems to have endless upgrade possibilities. The biggest problem will be learning how to best utilize all the function. Almost no instructions.

Ok, first off I want to say that this is in no way shape or form to reflect on BRS. They are a fantastic company and have always given me top notch customer service over the years.

Now, onto the RKL lvl3+. This is a great unit it does the job very well but there are two issues that I have with it. There are ZERO directions. You get some sort of piss poor excuse for a single page fold out pamflet and they expect it to show you how to set it up with that. it only shows a few very basic functions of the unit. In order to figure out some of the more basic functions of this controller I had to go onto their web forum, which after enough digging I found a "user manual" that frankly is garbage. It doesn't even cover how to hook it up to a computer or update firmware onto each module. let alone many of the other functions this controller is capable of, hell it doesn't even cover how to calibrate the PH PROBE! I have been wanting a controller for years and have always looked to Digital aquatics because when compared to the Neptune APEX, the RKL did everything I wanted for $200 less. Yes the are all kinds of other bells and whistles that you an get like webserver capability etc. I just didn't see a need for them. This unit does everything I need it to and then some for a good price. Which you would think for this price there would be some sort of "user manual", that you know, actually showed a user how to use all the functions of the product they just got done spending several hundred dollars on! It really is a wonderful product and does a great job I would just think that for a product with the MSRP this has it would come with something other than many hours of hunting in their boards or waiting for a response to a thread to figure out how to set the damn thing up.

Now for the other quam i have with this unit and its really not a very big one. One of the reasons that I switched over to this was to try and quiet down my tank by using new Hydor Evo pumps on a wavemaker format and a variety of other upgrades. Well I upgraded to the Hydor evo's because they dont knock when turned off an on which is great. only to discover that the relays in the RKL pc4's make a horribly loud knocking sound that frankly makes me rather disappointed in the quality. I mean their louder than any relay you would find in a car by a large margin, maybe thats just because of the amount of power they are rated to run? I'm really not sure but they certainly are NOT quiet.

had to find instructions online but overall this is a easy controller to operate will be buyin another

I really like this controller, it comes with everything and programming from my reef 2.0 is a must along with the BRS video. If I did not do this I think I would still be scratching my head to have it initially set up. However, I am still trying to completely figure this unit out. There is a learning curve but it would be less steep if the instructions were written with less RKL jargon. I still like my RKL and it does make my life easier.

So I listened to the BRS guys and decided to buy a controller right off the bat on a new 90 gallon setup, rather than phase it in over time. I looked at both the RKL and APEX Lite units. Dollar for dollar this system offered everything i needed, albeit without the bells & whistles (which in my experience are nice - but not must haves). I run the RKL on a 90 gallon DT with a 30 gallon sump/fuge.Added the dual float switches for ATO and 'run-dry' protection. Works flawlessly!

I don't know how I ever survived without this thing. It takes so much worry out of reeding. Great value!

I bought this reef keeper plus for my 120g and it works very well. All i wanted was an auto top off for my tank. Well the one i wanted was the tunze and its almost the same price as the reef keeper lite. So decided to go with the RKL which i programed to control my ATO,SKIMMER,RET PUMP,ETC . It didn't come with good instructions but all i did was call Digital Aquatics and they guided me step by step to program what i wanted. Definitely reccomend this controller to any reefer who's on a budget.

This is the first controller I've used and I'm still getting up to speed on it. But I saw several comments about lack of instructions and thought I'd mention that it a product manual is available at reefkeepers website. Also, I received a prompt, thorough, and easy to understand email in response to several questions I asked about my RKL Plus. So far, so good.