IOND & Standalone Doser 2.1 Set, White


*** UPDATE – As of May 2022! ***
Due to the ongoing global supply chain crisis, we are unable to accept new IOND orders until further notice. When the supply situation improves, we will begin accepting IOND orders again. Those who ordered prior to May 2022, are still in line to receive their units.

This IOND Standalone set includes everything you need to start measuring Calcium, Magnesium, Potassium, Nitrate and Sodium automatically. The Standalone Doser that is included in this set will control the measuring process and behavior of the ION Director. After every test, the IOND will evaluate the results and provide the measured values of each parameter via your Doser SA.

Out of stock

SKU: PL-1855 Category:

About ION Director®

The ION Director is a measurement device for the automated monitoring and control of Ca, Mg, K and NO3.

The ION Director® (IOND for short) uses state-of-the-art ion-selective technology to automatically and accurately measure essential water parameters – calcium, magnesium, potassium, sodium and nitrate – with maximum comfort and affordable operating costs.

The precise and durable multi-ion sensor, specially developed by GHL for seawater analysis, requires no reagents, cost-effective calibration liquids are used for the automatic calibration. Inaccurate, time-consuming and costly measuring methods, such as test kits, are a thing of the past.

In addition to measurement, the ION Director® System offers many other functions:

Combine the ION Director® with the KH Director® and measure and control the KH value in addition to Ca, Mg, K, Na and NO3

Features IOND

ION Director® Features

  • Unique Multi-Ion sensor
  • No reagent liquids required
  • Precise measurement
  • Cost-effective and harmless reference liquid
  • Measurements per day adjustable
  • Test results displayed via primary device
  • Automated Data-logging
  • Automated liquid supply
  • Low maintenance design
  • Seamless integration w/ GHL system

  • WLAN, USB und cloud-service access via primary device
  • Alarm
  • Large LED status indicator

Convenient to program via

  • GHL Connect app (iOS / android)
  • Web interface
  • myGHL cloud service
  • GHL Control Center PC software (GCC)

Professional CAN Bus System ensures reliable and interference-free networking of all network devices.

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.

How does the ION Director® work?

The IOND was designed as an accessory device and requires either a GHL Doser 2 Standalone or a ProfiLux aquarium controller (3 or 4) with GHL Doser 2 Slave to operate, see configurations below.

3 pump heads are required to perform the measurement.

To achieve the highest possible measurement accuracy, each test is performed with a freshly calibrated sensor. Two pump heads are used to convey the reference fluids required for this. After automatic calibration, a sample of the aquarium water is pumped into the ION Director®.

After the measurement has been completed, the sample water is pumped out again and collected in a separate container for later disposal.

How can the measured parameters be controlled?

Thanks to the innovative technology of the ION Director®, each parameter can be accurately measured and automatically regulated. If a parameter is too low or too high, the IOND can automatically calculate the amount by which dosages need to be changed to maintain stable values. It is therefore also suitable for different systems such as Balling® (Light) or Triton® .

Choose the optimal control mode for your aquarium and adjust it individually.

After a measurement, the deviation of the real value from the desired value (setpoint) is known. The following control modes operate on the basis of this deviation.

Add-On Control Mode

The set dosing quantities of certain dosing pumps are readjusted depending on the deviation determined, the user sets the quantity (in mL) by which the dosing quantity should change in the event of a certain deviation.

Adaptive control mode

Works similar to the Add-On control mode, but here the user determines the percentage change of the set dosing quantity for a certain deviation.

Configuration Options

The ION Director® can be operated in two ways:


The ION Director® is connected to the GHL Doser 2 (2.1) Standalone via the ProfiLux Aquatic Bus (PAB).

Doser 2 and ION Director

In this configuration, the GHL Doser has control over the measuring process: It controls the dosing pumps and evaluates the measuring results.



The ION Director® is connected to the ProfiLux (3 or 4) and a GHL Doser 2 (2.1) Slave via the ProfiLux Aquatic Bus (PAB).

P4, Doser 2, IOND

In this configuration the ProfiLux has control over the measuring process: It controls the dosing pumps in the Doser and evaluates the measuring results.

Choose the combination that suits your needs best

Whether you prefer the GHL Doser 2.1 or the P4-Slave Doser combination: thanks to the ingenious design, all devices will fit perfectly with each other no matter if stacked or positioned side-by-side.

We also offer attractive sets for the ION Director® and GHL Doser combinations.

Technical Specifications

The ION Director® is designed to work in conjunction with a GHL Doser 2 (2.1) Standalone or a ProfiLux® Aquarium Controller 3 or 4 with a Doser 2 (2.1) Slave for operation.

Color: Black or white
Dimensions: 8.7″ x 5.9″ x 3.0″ (without MUI sensor)
Dimensions: 11.5″ x 5.9″ x 3.0″ (with MUI sensor installed)

Delivery Includes

Scope of Delivery:

  • ION Director
  • GHL Doser 2.1 Standalone with 4 Pumps
  • 24V power supply
  • Power supply splitter cable
  • PAB cable 0.5m (19.6″)
  • USB cable
  • MUI sensor (Premium), especially designed for the ION Director
  • Reference fluids A+B 500 mL each
  • Flex PVC tube 8m (26.2 ft)
  • Inline water filter

About GHL Doser 2.1

Thanks to the high quality technology inside the compact and modern GHL Doser 2.1, it not only provides precise and simple dosing, but it also includes many more features. With the free GHL Contol 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.
Its 24V stepper motors allow precise dosing even at the smallest flow rates (0.1 mL). The device is comfortably operated from your smartphone or your PC. The connection is possible via Wi-Fi, 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 2.1 is available as a Stand Alone Unit, as well as a Slave Unit.

GHL Doser 2.1 Stand Alone:

The GHL Doser 2.1 Stand Alone has integrated control electronics and works on its own.

It includes two PAB-ports for connecting additional GHL Doser 2.1 Slave, Maxi Doser Slave or KH Director devices via ProfiLux Aquatic Bus.

PAB is an interference free CAN-Bus-System which allows for extremely secure data transfer between all PAB devices such as additional GHL Doser 2.1, KH Director, GHL Doser Maxi Slave devices. The range can be up to 100 m (300 FT).

  • PAB cables are not included and must be purchased.

One GHL Doser 2.1 SA is able to control 3 additional GHL Slave Dosers (GHL Doser 2.1 Slave or GHL Doser Maxi Slave) and can thus be extended to a dosing system with a total of 16 pumps.

GHL Doser 2.1 Slave:

The GHL Doser 2.1 Slave needs to be controlled via a ProfiLux Controller or a GHL Doser 2.1 Stand Alone (with integrated control electronics).

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

Doser 2.1 Features

Milliliter precision and automated dispensing of liquids such as

  • Fertilizers
  • Trace Elements
  • Balling Salts
  • Lime Water
  • Liquid Feed
  • Integrated evaporated water refill (Auto Top–Off)
  • Water exchange of small water volumes


  • Expandable to 16 pumps respectively metering channels
  • Stainless steel motor shafts (also suitable for the dosage of Iodine)
  • Chemical resistant tubing (Norprene®)
  • Manual operation of each individual pump is possible
  • Pumps can be retrofitted
  • Individual parts can be replaced (tubes, pump head, motor)
  • 24V stepper motors allow micro doses of 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 adjustable to 0.1 mL)
  • Level indicator

  • Wi-Fi, LAN, and USB
  • Alarm function
  • Large LED status indicator
  • Status LED for pumps

  • Convenient to program via our free PC software GCC
  • Or over our app, web, and cloud service, also free of charge

Professional CAN Bus System ensures reliable and interference-free networking of all network devices.

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.

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.

Ample accessories available.

GCC, GHL Connect App, Cloud Service

GCC, GHL Connect App, Cloud Service myGHL

GHL Devices are easily accessible via the free PC software GCC , GHL Connect app and cloud service myGHL. (> learn more).


Do you have questions or need technical support?

We’re here to help. First begin by following a few tips:

You have questions about the operation or for system setup?

  • A good start is visiting our Knowledge Base and our FAQs.
  • Download our manuals and tutorials. In most cases, the answers to your questions are answered in there. You´ll find them listed in our download center.
  • Check out our extensive videos.

Still have questions?

  • Take advantage of our extensive GHL support forum. Here, you will find topics and questions that have already been answered by our support team and/or customers. Tips and suggestions can also be found here. If this does not help, then please ask your question there. You will have direct contact with the GHL team and to many users, who can quickly help you.

Do you have a complaint or a defective product?

  • Your first contact should always be the dealer from whom you purchased the products.
  • In case you bought directly from GHL please contact us directly via our ticket system.

Not found what your are looking for?

2 Year Warranty

GHL provides a 24-month limited warranty against all processing and material defects for the IOND and Doser. Warranty period begins at the date of purchase.