This Mega-Set with the ProfiLux4 Controller is adapted for marine and freshwater aquariums.
It is ideal for measuring and controlling temperature, redox, conductivity and pH-value and for creating true-to life illumination effects.
ProfiLux 4 can be upgraded with expansion cards. The bus-system (ProfiLux Aquatic Bus) additionally offers great options for further extensions.

Shipment includes:

  • ProfiLux 4, black or white
  • Power supply unit in the specific country version
  • Digital water temperature sensor
  • pH-electrode with calibration fluids pH 7 und pH 9
  • Conductivity electrode with calibration fluid 50 mS
  • Redox-Sensor with calibration fluid 220 mV
  • Powerbar6E with PAB cable 2m
  • USB cable
  • Your Path to Success with ProfiLux.

    Having a ProfiLux Aquarium Controller operating and monitoring your aquarium, terrarium, or pond, can give you peace of mind. With ProfiLux, your aquatic environment is in the hands of reliable technology.

    The ProfiLux Controller has been the powerful heart and brain of a well-engineered modular system that has been growing since 1998. GHL provides the tools for all your maintenance tasks for whatever functions you want to control, monitor, or automate in your aquarium, terrarium or pond.

    Professional and Safe.

    The ProfiLux Aquarium Controller is built to make your hobby more enjoyable. We are hobbyists just like you and we know very well about the work involved in maintaining an aquarium, terrarium, and pond. Weekly water changes, monthly water testing, daily dosing, setting reminders, topping off, the list goes on and on. Wouldn’t it be great if you could spend less time working on your tank and more time enjoying it? There’s no need to wish because ProfiLux can make it happen!


    The “e” in ProfiLux 4e stands for essential.

    The ProfiLux 4e features the same high degree of quality and reliability as the flagship ProfiLux 4.

    With ProfiLux 4e, users who do not – or not immediately – need all the features of ProfiLux 4 are offered a more affordable alternative to ProfiLux 4 without sacrificing the essential.

    In comparison to ProfiLux 4, ProfiLux 4e has in the basic configuration one switchable pH/ORP input instead of two and no conductivity input, and in addition the less required S ports (digital outputs / connection for classicpowerbars) have been removed. Otherwise ProfiLux 4e is identical to ProfiLux 4.

    An upgrade to the full functionality of ProfiLux 4 is possible at any time later, either by inserting expansion cards or connecting an expansion box.

    The ProfiLux® aquarium controller offers everything the ambitious aquarist needs to achieve success.

    From form to function, the ProfiLux 4/4e is well-equipped to manage important tasks such as lighting control, water parameter measurement/control, level control, flow measurement, pump control, and much more. Fitted with the most on-board connections available, the ProfiLux 4/4e also includes integrated modules for measuring Conductance (adjustable: fresh or saltwater), Temperature, pH, and Redox. Connections for level sensors, flow sensores, leakage sensors, and 1-10V interfaces are also included.

    Built-in WiFi and USB connections ensure optimal connectivity to keep you well informed about the status of your aquarium via web interface, app, e-mail, and myGHL cloud service.

    The ProfiLux® aquarium controller is globally recognized for its outstanding accuracy and reliability. From private users to research institutions, they all trust in the ProfiLux to provide them with highly accurate data and performance. The exceptionalfunctionality of ProfiLux makes it the preferred controller of professionals and hobbyists alike.

    ProfiLux 4/4e is designed to standout from the crowd. Offering switchable pH/redox and Conductivity (4e: optional) inputs, laboratory grade measurement and accuracy, nearly limitless expansion options, rock-solid hardware, and much more. See for yourself, what it is like to own the ultimate in functionality. 

    Also available in attractive controller sets.

    1. ProfiLux4WhiteFront
    2. ProfiLux 4

    Elegant appearance: Available in high-gloss white or black


    Profilux®4e Connections

    • Numerous connection options even in the basic configuration, easily expandable at any time
    • Plug & Play: No additional costly modules necessary to connect the accessories listed in the below illustration, such as sensors (e.g. pH, temperature, flow, leakage, level), 1-10V devices and others

    Easy to use and versatile accessibility

    Operate ProfiLux 4/4e directly on the device or via smartphone, tablet or PC.

    ProfiLux 4 Display

    The Ultimate in Convenience

    ProfiLux 4 can quickly and easily be operated via the on-board control panel. Additionally the graphic display always provides the current operating conditions of your aquarium and can easily be customized to display any content you wish.

    Easily generate reminder texts, display the lighting intensity, or start a feed pause just from the push of a button.


    Stay Connected

    ProfiLux 4/4e is easily accessible via PC with our free software GHL Control Center. Regardless of your internet status, GHL Control Center can be used with or without the internet.

    Via your local Network or when connected to the web, you can have access to the ProfiLux 4 from your smartphone or tablet using the free GHL Connect App, the build-in webserver as well as the cloud service myGHL. Even when you are away from home, you can check-in on the status of your aquarium and make changes if necessary.

    GHL Connect App

    GHL Connect is a powerful, feature-rich app for ProfiLux 3, ProfiLux 4, GHL Doser and Mitras LX7. From the ground up, we built an app that allows users to easily take control of their GHL devices from the convenience of Read More ...



    myGHL is a cloud service that provides users with another way to easily operate GHL products. Whether on vacation or on a business trip, myGHL makes it even easier to access GHL-products from anywhere in the world. myGHL is a perfect way to stay informed about Read More ...


    GHL Control Center

    With GHL Control Center (GCC), you can easily program different GHL devices from your PC: ProfiLux Light ProfiLux Mini ProfiLux Terra ProfiLux 3 (starting with firmware 6.00) ProfiLux 4 Mitras LX GHL Doser 2 GHL Control Center also includes measurement analysis Read More ...


    Unmatched Expansion Options

    ProfiLux 4/4e includes a large selection of expansion options to suit the needs of any aquarist. When you need to add more functions, simply add an expansion card to one of the available expansion slots. No need to buy additional modules, just pop the card in and you’re good to go.

    Between Expansion Cards and Expansion Boxes, you can expand the ProfiLux to nearly no limit!

    ProfiLux Expansion Cards

    ProfiLux Expansion Cards allow for further controller expansion and are compatible with ProfiLux II, ProfiLux II Outdoor, ProfiLux 3 (all models), ProfiLux 4 and Expansion Box. Whether measuring pH, ORP, or Conductivity: We offer a wide variety of Expansion Cards to suit your Read More ...


    ProfiLux Expansion Box 2

    A most clever Expansion. Just more ProfiLux. All interfaces of the ProfiLux already used and you have run out of expansion slots? Looking to expand ProfiLux even further? Expansion Box 2 is the solution! With the Expansion Box 2, the Read More ...


    ProfiLux OS – Maximum Safety and Stability

    ProfiLux aquarium controllers run with GHL’s very own unique operating system, ProfiLuxOS. This operating system has been specially developed to conduct control tasks for aquariums.

    Most operating systems have been designed and optimized for specific applications which, in our opinion, cannot provide the level of safety and performance required to control your valuable aquarium, pond, or terrarium.

    ProfiLux OS was built from the ground up for the sole purpose of maintaining maximum safety FOR aquariums. Our custom OS is robust, flexible, and future-proof, offering maximum operational security and optimal efficiency.


    Seamless Communication – Through PAB

    Our communication interface features an integrated CAN-BUS system, ProfiLux Aquatic Bus PAB which provides seamless communication between PAB-devices. As such, a complete secure network can be built up. Devices connected in this way can communicate with each other in a particularly safe and interference-free manner – even over long distances (100 m or 300 ft).

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GHL Profilux 4 Mega set 6E (white)