GHL KH Director & GHL Doser Slave Set

This set consists of a KH Director and a GHL Slave Doser 2.1, with 4 pumps, stepper motors, and a power supply.

An additional control unit (ProfiLux Controller from version 3 or GHL Doser Stand Alone from version 2) is required for operation.

The KH Director® is connected to the additionally required control unit (ProfiLux 3/3.1/4 or a GHL Doser 2/2.1/2.2 Stand Alone) and the GHL Doser 2.2 EXT via the ProfiLux Aquatic Bus (PAB).

With this option, an additional required ProfiLux Controller or a GHL Doser 2/2.1/2.2 Stand Alone (not included) has complete control over the measuring process and behavior of both the GHL Doser Slave and KH Director. The respective device will control the dosing pumps in the GHL Doser Slave and the valves in the KH Director. This will allow the controller to evaluate the measurement results and calculate the KH value.

Scope of Delivery:

• KH Director
• GHL Slave Doser 2.1 with 4 Pumps
• Desktop power supply in the respective country version
• 2x PAB cable 50 cm
• pH electrode for the KH Director
• Calibration fluids pH4 and pH7
• Reagent Solution 500 mL
• Silicone tube 5 m

Automated Alkalinity Monitoring and Control

The upkeep of Alkalinity is the most important aspect of reef keeping, stability is key. If you’re looking to achieve exceptional coral growing conditions, Alkalinity testing is a must!

Keep it steady with the new KH Director. Monitor, maintain and control Alkalinity with ease.

Lab-grade KH Measurement Accuracy

Measure your Alkalinity with lab-grade accuracy. With only a 100 ml water sample, KH Director® can provide measurement values with 0.1° dKH accuracy.

User-adjustable Test Sample Volume

In practice, an accuracy of 0.1° dKH is not always necessary. KH Director offers the option to reduce the test sample volume for each test. An accuracy of approx. 0.2° dKH can still be achieved with a smaller water sample.

Measurements per Day Adjustable

If the KH value does not fluctuate strongly the number of measurements can be reduced.

Higher Accuracy and Safety Provided by Additional Valves

Test your Alkalinity with confidence and consistency. Built-in valves ensure exactly the same measurement conditions and prevent the sample liquid from flowing back into the aquarium, even in the unlikely event of a fault.

Cost-effective and Safe Reagent Fluid

Each test requires only 1 – 3 ml per measurement.

Automated Data-logging

Examine past test results, catch sudden KH swings, and fine-tune your KH dosing with help from automated data logging.

Automated Liquid Supply

Automatic supply of KH-boosting liquids. Depending on the method one or more additional dosing pumps required.

Calcium Reactor Control

Alternatively, the KH value can also be influenced by controlling a calcium reactor.

LED Status Display

The on-board GHL LED logo conveniently provides color-coded status indicators. The various colors show you the condition of your system at a glance.

• White = Configuration mode
• Blue = Normal operation
• Green = Amount of liquid in a fluid container is OK
• Yellow = Warning threshold – fluid container(s) are running low
• Red = Alarm threshold – fluid container(s) are empty

myGHL Cloud Accessible

Access the KHD through the myGHL® cloud service – via GHL Doser 2 / 2.1 or ProfiLux 3 / 3.1 / 4.

Seamless Integration w/ GHL System

Through the use of the PAB (ProfiLux Aquatic Bus) connection, KH Director® seamlessly integrates into the modular GHL aquarium system. The PAB connection ensures interference-free communication with other GHL PAB-devices such as the GHL Doser 2.1 or the ProfiLux® 4.

Low Maintenance Design

The KH Director®’s unique design makes it easy to access and maintain the included pH electrode. Calibration and replacement, made easy.

KH Value Display

View your KH reading whenever, wherever you want via the ProfiLux display, ProfiLux Touch or web browser (myGHL®), additional external display unit optional.

Robust Design Built in Laboratory Quality

Every product we build is made to last the test of time. The KH Director® is no exception. Down to the finest of details, the KH Director® is built of durable material and corresponds to laboratory requirements.

Technical Specifications

KH Director® is available in two color options: Black or white

• Dimensions (mm): 220 x 150 x 75 mm (w/out pH electrode)
• Dimensions (in): 8.66″ x 5.9″ x 2.95″ (w/out pH electrode)

Scope of Delivery

• KH Director® includes the following:
• Device with integrated measuring cell
• pH electrode, especially designed for the KHD, incl. calibration liquids
• Testing reagent 500ml
• Silicone tube 5m
• Flex-PVC tube, 70cm
• Waterfilter
• Power-supply splitter-cable