ReefKeeper Lite Plus - Digital Aquatics

ReefKeeper Lite Plus - Digital Aquatics
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  • How a ReefKeeper Can Save You Money
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ReefKeeper Lite Plus - Digital Aquatics

88% Recommend this to a friend (91 of 104)

SKU: 205501
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Quick Overview

Why does BRS recommend this?

The Digital Aquatics Reef Keeper Lite is a great little aquarium controller that makes programming very straight forward and easy.  The options are somewhat limited compared to other controllers on the market, however if you are looking for a simple, easy to use controller, with the availability to be expanded upon, the Reef Keeper Lite units are some of the best.

Digital Aquatics ReefKeeper Lite or RKL comes in 3 different levels. They are small expandable and perfect for nano tanks, beginners, and everyone looking for a mid level controller. ReefKeeper Lite's are easily the best value controllers on the market. See below for quick compare chart of the differences between each RKL.

ReefKeeper Lite Plus Features

  • Head Unit

  • 2 PB4 power bars (8 total outlets)

  • Digital Aquatics Temperature probe

  • ReefKeeper SLX pH and ORP Module(Inputs: pH, ORP, Temperature, and 2x Switch Ports)


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Product Questions

Can this controller monitor salinity with an add on module? Which module do I need and will the slain it prob have to be bought seperate as well. What I want is the ability to monitor temp ph and salinity more accurately.
Question by: Kirk ballinger on Jan 28, 2016 11:46:00 AM
Great question!
There is the SL2v2 salinity module available. Keep in mind you will need the Reef Keeper salinity probe as well. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 4, 2016 5:37:00 PM
I would like to know if I could get the power bar RKM-PB4 in 220v.

Question by: Ravinder on Apr 18, 2016 3:09:00 PM
Great question!
All items on the site are designed and sold for use in the US and Canada. Feel free to let us know if you have any further questions.
Answer by: Connor (Admin) on Apr 25, 2016 6:48:00 PM
Does this include a pH probe? What is all that is included in this package?
Question by: Paul on Mar 13, 2016 11:20:00 PM
Great question!
This package will include the power controller x2, pH probe, iTemp Probe, SL1 module for pH control and the option to add on ORP. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 15, 2016 11:11:00 AM
Do you know if reefkeeper will be able to control a diy Steve's led retrofit for a biocube? I have a typhoon controller on it right now.
Question by: Aaron on May 11, 2014 4:33:00 PM
Hi Aaron,
I am unfamiliar with that setup but so long as it has the ability to use a 0-10v input line to control the LED's themselves then you shouldn't have any problems with the reefkeeper, though keep in mind you need the ALC module.
Answer by: Bulk Reef Supply on May 11, 2014 4:33:00 PM
I want use this for control of the power heads but is TUNZE the only brand that is compatible?
Question by: Dan on Aug 30, 2014 1:22:00 AM
Hi Dan,

By using the APC module you will be able to connect Controllable Tunze pumps.
I am not aware of any other pumps supported by this module but it is possible that there have been adapters released to control other DC power heads.
I would also take a look at the ReefKeeper DCI DC Pump Interface. It may work for what you have in mind.

I am sorry I couldn't be of more help.
Have a great day :)
Answer by: Bulk Reef Supply on Aug 30, 2014 1:22:00 AM
Would this be good to run on a 20 gallon reef?
Question by: Me on Oct 24, 2013 3:12:00 PM
Hey there,
I actually have a controller running on my 16g here at the office. Despite the size of the tank, there is just some equipment you never can really get away from like heater, timers, etc which really makes a controller a great choice for just about any size aquarium and it would be a great choice for your tank.
Answer by: Bulk Reef Supply on Oct 24, 2013 3:12:00 PM

Full Details

RKL Users Guide


RKL Application Guide


RKL Quick Start Web


The ReefKeeper Lite or RKL is an all new completely redesigned controller from Digital Aquatics. These midlevel controllers come in three different levels. Check our quick compare table below for the differences between each. Please note that some of the advanced modules and features of the ReefKeeper Elite are not available for the RKL.


Quick Compare - ReefKeeper

 Head UnitPower Bar 4System Lab XProgramming CouplerTemperature ProbepH ProbeSystem Interface DeviceNet Interface Module
Lite Basic x x   x x   x  
Lite Plus x x (2) x x x x x  
Lite Net x x (2) x x x x x x
Elite Plus x x (2) x   x x (w/calib. packets) x  
Elite Net x x (2) x   x x (w/calib. packets) x x

Digital Aquatics ReefKeeper Lite (RKL) Features


  • Expandability: Every RKL can interface with up to 4 modules in almost any configuration.
  • Data reporting: The RKL can report the min, max and average over the last hour for all in and outputs.
  • Improved 5 button interface: All ReefKeeper Lite's have a 5 button interface. Traditional entry level controllers feature only 3 button interfaces.
  • 16 dedicated timers all with day of the week capability
  • Audible and visual feedback
  • 16 dedicated alarms
  • New control functions: Improved controller, multi-timer, light, lunar, and pump controls
  • Free software upgrades: ReefKeeper software upgrades from Digital Aquatics is free and easy to install via USB cord
  • MyReef software requires Windows Operating system
  • Independently programmable night mode allows moonlights and pumps to be adjusted in the evening times
  • Wavemaker: ReefKeeper Lite's have two wavemaker cycles that control separate pumps to simulate wave motion. Each cycle can be timed and the cycles can be turned off during night mode to give a calming effect.
  • Programmable standby feedback mode can be set from 1 to 59 minutes during which the ReefKeeper Lite shuts down selected powerheads and pumps. This allows for calm feeding condition and is useful for conducting maintenance.
  • Head unit easily mounts in a number of professional custom looking ways.
  • Splash proof face plate
  • Internal battery backup keeps time and settings of the ReefKeeper Lite safe for years. Power outages will not require the adjustments that other light timers need after power is restored.
  • Simple menu configuration has an simple interface that allows for easy setup and navigation.



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  • Worth the money!! By Tyler on 4/21/2016

    I first saw this controller on the BRS videos on how to start a saltwater tank. I was immediately sold just on the money saved by buying the controller and not timers! The biggest plus to having this controller is the amount of hassle it takes out of owning a reef tank.
  • Excellent value By JJ on 12/15/2015

    This is a great system for the money. Highly satisfied. I did order additional power module to have total of 12 outlets. Very expandable and intuitive to use. Timer settings can get a little complicated but i think it is a necessary evil to be able accept complicated multiple timer programing. Fraction of the cost of Neptune system.
  • Good but you're controlling By Cartman on 11/15/2015

    Good budget controller Manual That give us not the greatest but YouTube helps a lot . Good have a problem with my temperature probe but brs and Digital aquatics help me and sent a new one for me . Only wish u can add few more module to it it comes with 3 and u can only have 4 with the lite
  • Good product and service By Pablo on 11/8/2015

    This is an excellent low-priced monitor and controller. The manual is poorly written, and that's why I'm giving it 4 points, otherwise very good. Bulk Reef Supply have an amazing service, quick delivery and everything easy, highly recommendable.
  • Happy By Ken on 10/2/2015

    Need better instructions with device. Had to watch Youtube and BRS videos to get everything up and running and calibrated correctly. After getting all going it controls everything great. Still need to find how to control wavemakers for more run time.
  • Simply Amazing! By Steve on 6/26/2015

    I love how easy this controller makes it to monitor your parameters and adjust settings. It makes controlling and running your tank and umpteen gadgets a breeze. It seems a little pricy up front but when you consider how many products it combines into one its totally worth it. It's also very user friendly to set it up and connect all your equipment to it.
  • Like but with a few issues By Robert on 11/5/2014

    I think overall this is a great product. It's very easy to setup even though the instructions could be a little better. I had a problem with the SL1 and contacted the company VIA email since calling didn't work well. After 9 days I finally received a tracking number for my replacement SL-1. They were great helping me troubleshoot it but slow to ship the replacement. The cable from the TEMP probe is cheap and could be better made. Once I plugged in my SL-1 everything worked great but I'm still getting an I-Temp error and I'm waiting on a response from DA. Also, it was easy to figure out how to setup a heater but after playing with it I finally got it.
  • Not worth it!!! By Raymond on 10/22/2014

    I've had my ReefKeeper Lite Plus for a year now. I still can't get it to work properly. Some things go off and I can't turn them back on. The controls are not user friendly. I'll never by this again
  • good product for price By David on 10/13/2014

    The reefkeeper is a good controller for the money. Poor instructions from manufacturers. Thank you brs for making a video on this I would have been lost without it
  • Excellent Customer Service By logan on 9/15/2014

    This is my second review of this product. I have given it a better review this time around after dealing with their customer support. Their response to the issues I was having were quick and knowledgeable. After resolving for most of the issues they shipped out a replacement part for the final one at no cost. I would definitely recommend this company to fellow reefers!
  • wish I bought it sooner By mikee on 8/26/2014

    My main focus was for the temperature control as I had my heater, the best one I could buy, stick on only to find my tank went from 77 to 90 the next day when I got home from work...
    After hooking it up I was even more glad I bought it. It cleaned up all of my power strips, wave maker timer and other timers.
    Very happy I bought it !
  • Great Product Poor Instructions By logan on 8/13/2014

    The product works exactly as described. The only major issue is the complexity to get it, along with additional modules set up. The user experience of the myreef2.0 software is poor and it takes lots of youtube and forum searching to get a handle of.

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