ProfiLux Aquarium Controller
The brain of your aquarium. ProfiLux controllers monitor and automate every key parameter — temperature, pH, conductivity, redox, light, water level, and more — so your tank runs reliably whether you’re at home or away.
Connect sensors, lighting, dosing pumps, and power outlets into one coordinated system. Set your schedules and target values once, and ProfiLux keeps conditions stable around the clock, with alerts when something needs your attention.
Configure everything through the GHL Control Center software and access your system locally or remotely.
Built and developed in Germany, ProfiLux has set the standard for aquarium automation since 1998.
ProfiLux Controllers
S-Port & L-Port Breakout Box
$41.90For all ProfiLux and Expansion Box (all versions each) with 2x RJ12 cable 1m and cable ties
PLM-PWC
$84.90Expansion card for ProfiLux 3 and 4, radio module, wireless communication with Mitras LX.
View full product info and configuration guide
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PLM-WiFiLAN
$86.90Expansion card for ProfiLux 4/4e: Enhanced WiFi + LAN connectivity
GHL Control Pad
$267.90A dedicated 24/7 touchscreen display for your ProfiLux 4(e).
Provides instant access to key measurements, manual controls, and system actions — no phone or app needed.
Flexible wall or flush-mount installation.
GHL Automatic Fish Feeder
$100.90Reliable automated feeding for the ProfiLux ecosystem. Programmable cycles plus instant manual feeding via app, GHL Connect, GHL Control Center, ProfiLux panel, or the button on the feeder itself. The drawer principle keeps dry food sealed and clump-free; a built-in IR light barrier warns of low food levels before feeding fails. Up to 4 feeders per ProfiLux 4(e)/4.1(e), or 1 per ProfiLux Mini/Light WiFi (adapter required). Powered directly by the controller — no batteries, no extra power supply.
Out of stock
YL2 Cable
Price range: $16.90 through $21.90Splitter cable in three different lengths for connecting 2 tubular light bars, LED lights, or flow pumps to one L-port.
PLM-ADIN
$109.90Expansion card for ProfiLux and Expansion Box. 2 analog inputs 0 V-10 V, 4 digital inputs, all galvanically isolated
ProfiLux 4 adapter for power cut monitoring
$25.90With interchangeable power plugs: Euro, UK, and USA.
PLM-4Level
$107.90Expansion card for ProfiLux and Expansion Box
4 inputs for level- or flow-sensors
Replacement Null plug for Redox probe
$6.90Replacement null plug used for calibrating the GHL Redox probe.
PLM-pH/Redox-DigTemp
$148.90Sensor Input
Expansion card for ProfiLux and Expansion Box
1 switchable input for pH-value sensor or Redox sensor, galvanically isolated
1 input for digital water temperature sensor, galvanically isolated
PLM-Oxygen
$102.90Expansion card for ProfiLux and Expansion Box. 1 galvanically isloated input for oxygen sensor
PLM-Humidity-Temp
$87.90Expansion card for ProfiLux and Expansion Box. 1 input for combined sensor air temperature and rel. Humidity
ProfiLux Mini/Light-Adapter
$29.90Adapter for connecting 3x level- or leak sensors, automatic feeder and Mitras Lightbar or Slimline to ProfiLux Mini (WiFi) and ProfiLux Light (WiFi)
PLM-pH/Redox-Cond
$174.90Expansion card for ProfiLux and Expansion Box
1 switchable input for conductivity sensor, measurement range 0 100 mS or 0 2 mS, galvanically isolated
1 switchable input for pH-value sensor or Redox sensor, galvanically isolated
PLM-2L4S
$72.90Expansion card for ProfiLux and Expansion Box. Two 1-10 V-interfaces and control of 4 switchable sockets
Power supply 12V/1.5A, incl. power cord
$28.90Grounded power supply (12V/1.5A) for all ProfiLux controllers (all versions), Expansion Box 1 and 2, and the original GHL Doser (V1). Required accessory for Industrial Line units that operate on 12V. Wide-range input (100–240V, 50/60 Hz) with country-specific IEC power cord. Protective earth connection for maximum EMI immunity and electrical safety.
ProfiLux 4.1 Mega-Set 6E
$1070.90Everything you need – matched, ready to run, and priced below individual purchase. The ProfiLux 4.1 Mega-Set 6E bundles GHL’s professional aquarium controller with lab-grade probes for pH, redox, conductivity, and temperature, calibration fluids for each, a Powerbar 6E-PAB, and all connection cables. Integrated modules for temperature, pH, redox/ORP, and conductivity (fresh/saltwater switchable), 32-channel illumination control, WiFi, LAN (Ethernet), USB, OTA firmware updates, expandable via three Expansion Card slots and PAB.
Out of stock
ProfiLux Light WiFi
$104.90Natural lighting, day after day. ProfiLux Light WiFi – 24-channel illumination control, 4-channel pump control. WiFi and USB. Compact, wall-mountable.
ProfiLux IL (15HU)
$734.90The full ProfiLux 4 feature set in a 15HU aluminum Industrial Line housing – engineered for rack and cabinet installations. Integrated modules for temperature, pH, redox/ORP, and conductivity (fresh/saltwater switchable). 32-channel illumination control, 16-channel pump control. WiFi, USB. Three Expansion Card slots and PAB. Power supply not included.
ProfiLux Expansion Box 2
$325.90Expansion box for ProfiLux 3+4/4e aquarium controller with power supply
ProfiLux 4.1 Mega-Set 6E & GHL Control Pad Bundle
Original price was: $1338.80.$1325.41Current price is: $1325.41.The ProfiLux 4.1 Mega-Set 6E & GHL Control Pad Bundle gives you complete aquarium control plus a dedicated touchscreen – always on, always at hand. The Mega-Set 6E covers full water parameter measurement (temperature, pH, redox/ORP, conductivity), 32-channel illumination control, and power management via the included Powerbar 6E-PAB, lab-grade probes, and calibration fluids. The ProfiLux 4.1 adds LAN (Ethernet) and OTA firmware updates on top of WiFi and USB. The GHL Control Pad adds a touchscreen display for instant access to key readings, manual overrides, and system functions – no phone or app required. Save compared to purchasing individually.
ProfiLux 4.1
$629.90ProfiLux 4.1 aquarium controller with with integrated modules for temperature, pH, redox/ORP, and conductivity (fresh/saltwater switchable). WiFi, LAN (Ethernet), and USB. OTA firmware updates over WiFi or LAN. 32-channel illumination control, 16-channel pump control. Three Expansion Card slots and PAB.
ProfiLux Mini WiFi
$209.90One GHL controller for measurement, regulation, and lighting. ProfiLux Mini WiFi – integrated modules for temperature and pH, 24-channel illumination control, 4-channel pump control. WiFi and USB. Compact, wall-mountable.
ProfiLux 4 Mega-Set 6E
$1018.90Everything you need – matched, ready to run, and priced below individual purchase. The ProfiLux 4 Mega-Set 6E bundles GHL’s ProfiLux 4 controller with lab-grade probes for pH, redox, conductivity, and temperature, calibration fluids for each, a Powerbar 6E-PAB, and all connection cables. Integrated modules for temperature, pH, redox/ORP, and conductivity (fresh/saltwater switchable), 32-channel illumination control, WiFi, USB, expandable via three Expansion Card slots and PAB.
GHL Control Pad IL
$283.90A dedicated 24/7 touchscreen display for your ProfiLux IL.
Provides instant access to key measurements, manual controls, and system actions – no phone or app needed.
Designed for installation inside GHL Industrial Line enclosures.
ProfiLuxSer
$16.90Serial PC-Connection Cable ProfiLuxSer RS232
PLM-CondF-Redox
$114.90Expansion card for ProfiLux and Expansion Box. 1 galvanically isolated input for Conductivity sensor, measurement range 0 – 2 mS 1 galvanically isolated input for Redox sensor
ProfiLux Mini WiFi-Set
$419.90Everything you need to start monitoring and controlling your aquarium – matched, ready to run, and priced below individual purchase. The ProfiLux Mini WiFi-Set bundles GHL’s compact aquarium controller with a digital temperature sensor, pH electrode and calibration fluids, a 4-socket switchable Powerbar, and USB cable. Temperature and pH measurement, 24-channel lighting control, variable-speed pump control, WiFi and USB. Available in white or black.