With the free GHL Connect App or the cloud service myGHL, you can always control anything from anywhere, start dosing programs or monitor the fill levels of your liquids. The high-quality technology inside the modern GHL Doser Maxi 2.2 provides precise and straightforward dosing and includes many more features.

The GHL Doser 2.2 Maxi can be run as a single unit or combined with other GHL devices. Operate the device comfortably with your smartphone, tablet, or PC. The connection is possible via WiFi and USB.

The LED illuminated GHL Logo in the housing serves as a status indicator. Various colors and blink codes and tell you when something requires your attention.

The GHL Doser 2.2 Maxi is available as a Stand-Alone Unit (SA) and Extension Unit (EXT).

Features and Benefits Include:

- Advanced Connectivity
Connect up to 2 external magnetic stirring units, the GHL Control Pad * or Temperature and Level Sensors.
- Integrated Refill (Auto Top-Off)
Refilling and changing water.
- Suited for permanent operation
The pumps are suited for permanent operation, please see also Maintenance & wear parts below.
- 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:
up to 320 ml / minute (precisely adjustable to 0.1 ml)
- LED Status Display
The LED–backlit 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

- Level Indication and Alarm
Keep track and control of the liquid levels in your containers. An alarm signals that the minimum quantity has been reached.
- Versatile Connectivity Options
Magnetic Stirrers
External GHL Control Pad (4,3” Touch screen)
Temperature sensors and Level sensors
- Easy Handling
Programming and operating the GHL Doser 2.2 Maxi Stand Alone is easily accessible via the free PC software GCC, app and cloud service myGHL.
- Simple Connection
The connection can be made via WiFi or USB.
- Convincing Quality
We only use durable and quality materials.
The pumps on our Dosers all have chemical-resistant tubing and long lasting motors.
The housing is robust and made of hard-waring aluminum and durable plastic.
- Model Diversity
GHL Doser 2.2 Maxi is available in two different models:

Stand Alone (SA): With integrated control
Extension (EXT): Without control, controllable via GHL Doser 2/ 2.2 Maxi SA, GHL Doser 2/ 2.1/ 2.2 SA, ProfiLux Aquarium Controller
In addition, select between white and black (cover).

- Expandable to a Whole Dosing System
Do you need more pumps? No problem: The system is expandable to a total of 32 pumps.

16 pumps with Stand Alone + one or more EXT Doser (GHL Doser 2/ 2.1/ 2.2 EXT or GHL Doser Maxi 2.1/ 2.2 EXT)
32 pumps with ProfiLux Controller + one or more Extension Doser (GHL Doser 2/ 2.1/ 2.2 EXT or GHL Doser Maxi 2.1/ 2.2 EXT)
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 103 mm (without pumps)

2 pumps with stepper motors, up to 320 ml / minute

Models: Stand Alone, EXT

Stand Alone and Extension Doser. Efficiency at its Best.

Do you need more than one device? If so, the GHL Doser Maxi 2.2 is perfect for you because the Doser can be expanded into an efficient dosing system. Control up to 32 pumps independently with a ProfiLux or 16 pumps with any SA Doser.

The Stand Alone unit has integrated control electronics. With it, you can additionally control other Extension Dosers (GHL Doser 2/ 2.1/ 2.2 Extension or GHL Doser Maxi Extension).

GHL Control App Pumps
Adjust settings in the App, Cloud and Webserver on the go or via our PC-software.

The highly accurate 24 V stepper motors allow to perform up to 150 doses per day. The dose is precisely adjustable to 0.1 ml!

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

Stand Alone and Extension Doser. Ports.

GHL Doser 2.2 Maxi Stand Alone
Realize the full potential of GHL Doser Maxi 2.2 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 2.2 Maxi Extension
Expand your Stand Alone Doser or operate the Extension Doser with a ProfiLux Controller.

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

Connections_GHL Doser 2.2 Maxi SARear Stand Alone Maxi Doser
Connections_GHL Doser 2.2 Maxi EXTRear Slave Doser Maxi
Quality and Functionality. Down to the Smallest Detail.

The PP2 peristaltic pump was developed from scratch by GHL and offers outstanding performance in addition to a modern and sleek design.

Easy maintenance without tools: After moving the pump cover, all internal parts are easily accessible.

The push-buttons on the front panel allow for quick manual dosing or priming the tubes.

Push-pull fittings allow the use of semi-rigid hoses (OD = 6 mm), flexible hoses can also be used with the supplied adapters.