GHL Doser 2


Precision and Innovation. The Doser that can just do more.

Thanks to the high quality technology inside the compact and modern GHL Doser 2, it not only provides precise and simple dosing, but it also includes many more features. With the free GHL Control App or the cloud service myGHL you can access your Doser from anywhere in the world to start dispensing programs or check the levels of your metering liquids.

The device is comfortably operated from your smartphone or your PC. The connection is possible via WiFi, LAN and USB.

The LED illuminated GHL Logo in the housing serves as a status indicator. It displays the condition of your aquarium by displaying various colors and tells you when something requires your attention.

The GHL Doser 2 is available as a Standalone Unit, as well as a Slave Unit.

Did you know that you can use the Stand Alone Doser also as a Slave Doser?

So if you like to add a ProfiLux Controller to your system in the future you can let the ProfiLux control your Stand Alone.

Simply activate the Slave Mode with a single click in the GCC.

Features and Benefits Include:

Advanced Connectivity

Connect to an external magnetic stirring unit, the GHL Control Pad * or Temperature and Level Sensors.

* Not yet available

Integrated Refill (Auto Top-Off)

Refilling and changing of small amounts of water.

Very Precise Dosing

The 24V stepper motors allow precise dosing even at the smallest flow rates (0.1 ml).

  • Up to 150 doses per day
  • Easily chose dosing times via software (GHL Control Center).
    Automatically: Up to 150 individual doses per day automatically distributed
    Individually: Up to 8 doses per day individually set
  • Each pump can be set separately
  • Conveying capacity and dosing:
    8-45 ml / minute (precisely adjusable to 0.1 ml)

Level Indication and Alarm

The LEDbacklit GHL Logo in the housing cover serves as a status indicator. Various colors show you at a glance, the condition of your system.

  • White = Configuration mode
  • Blue = Normal
  • Green = Amount of liquid in the container is OK
  • Yellow = Warning threshold amount of liquid undershot
  • Red = Alarm threshold amount of liquid undershot

Learn more

Easy Handling

Programming and operating the Doser 2 Stand Alone is easily accessible via the free PC software GCC, app and cloud service myGHL.

The Slave Doser is programmed via the ProfiLux Controller.

Advanced Connectivity

The connection can be made via WiFi, LAN, or USB.

Convincing Quality

  • We only use durable and quality materials.
  • The pumps on our Dosers all have chemical-resistant tubing and stainless steel motor shafts.
  • The housing is robust and made of hard-waring aluminum and durable plastic.

Model Diversity

GHL Doser 2 is available in two different models with 2-4 pumps:

  • Stand Alone: With integrated control
  • Slave: Without control, control via ProfiLux Aquarium Controller

In addition, select between white and black (cover).

Expandable to a Whole Dosing System

You need more than one device? No problem: The system is expandable to a total of 16 pumps.

  • Stand Alone + 3 Slave Doser
  • ProfiLux Controller + 4 Slave Doser

The ProfiLux Aquatic Bus provides reliable and interference-free data transfer, even over long distances up to 100 m (300 ft.).

Technical Specifications

Color: Black or white

Dimensions: 220 x 150 x 70 mm (without pumps)

Variants: 2-4 pumps

Models: Stand Alone, Slave

GHL Doser 2
Also available with a black cover.
GHLDoser 2, schwarz

Stand Alone and Slave Doser. An Efficient Team.

Do you need more than one device? If so, the GHL Doser 2 is perfect for you because the Doser can be expanded into an efficient dosing system.

The autarchic Stand Alone unit has integrated control electronics. With it, you can additionally control 3 Slave Doser units.

The Slave Doser has an interface for control via the Stand Alone Doser or the ProfiLux Controller.

You can control a total of 16 pumps independently.

The settings for all the pumps can be adjusted easily and clearly with our software. Even when you are not at home, you can still have access.

Did you know that you can perform up to 150 doses per day? Precisely adjustable to 0.1 ml!

When determining the dosing times you can either chose your doses beeing distributed automatically throughout the day. Or beeng distributed up to 8 doses per day, individually set.

Stand Alone and Slave Doser. Ports.

GHL Doser 2 Stand Alone

Realize the full potential of GHL Doser 2 Stand Alone:

You can also connect up to 2 Level sensors to monitor the water level in your basin and a temperature sensor for checking the water temperature. You can even use our Magnetic Stirrer to ensure that fluids are always mixed prior to dosing.

GHL Doser 2 Slave

Expand your Stand Alone Doser or operate the Slave Doser with a ProfiLux Controller.

The connection is made without interference via the PAB Aquatic bus PAB cables.


Quality and Functionality. Down to the Smallest Detail.

Manu GHL Doser 2

Each pump can be operated manually via the push buttons on the front panel. This allows you to quickly post-dosing, deflating the tube vent or suctioning liquids.

Did you know that you easily can upgrade your GHL Doser 2? We offer upgrade kits from 2 to 3 pumps and from 2 to 4 or 3 to 4 pumps as Doser Accessories.

Are you in need of technical support or would like to have a buying guide?

If so:

Then join the growing GHL community by navigating to our dedicated support forum! Our GHL Support Forum offers you direct contact with the GHLTeam and our wide customer base and can provide you with a wealth of tips and guidance. Just make sure you stop by!