KH Director with Doser 2.2 SA (White) (OPEN BOX)

In stock
Out of stock
$815.91 $959.90

- +

Automatically Monitor, Maintain, and Control your Aquarium's Alkalinity!

  • KH measurement with 0.1 dKH accuracy
  • Adjustable test sample volume
  • Measurements per day adjustable
  • Higher accuracy and safety provided by additional valves
  • Cost-effective and safe reagent fluid
  • Automated data logging
  • Automated liquid supply
  • Kalk reactor control
  • Low maintenance design
  • Seamless integration w/ GHL system
  • USB, wlan, and cloud service access
  • Alarm functionality
  • LED status indicator


Automated Alkalinity Monitoring and Control

As always, GHL has stuck to the fundamental belief in high quality and exceptional reliability to bring you a product that is built to last. Featuring a patent pending design, the KH Director utilizes lab-grade quality test standards to provide precise results every time. With only a 100 mL water sample, KH Director can provide measurement values with 0.1 dKH accuracy.

KH Director uses a modified pH probe to provide KH values. In terms of the KH test process, the 3 blue adapters on the KHD each connect to an available GHL Doser 2.2 dosing unit. One pump is used to feed tank water into the KHD. The second pump feeds the KHD with reagent fluid. The third pump extracts the test sample and used reagent fluid after a completed test, then dispenses it into a waste bin.

As tests occur, the 3 pumps automatically perform their assigned tasks and report the results onto a viewable data logging chart. This data is then viewable on myGHL, ProfiLux Touch, ProfiLux display, and additional external display unit.

The GHL KH Director requires 3 pump heads to perform the test, leaving one head open for dosing or any other operation you wish. Many reefers will use Tropic Marin All-For-Reef as an all-in-one additive supplement, where others may choose to replace the 100mL sample water with fresh saltwater after every test. How the open head functions is completely up to you!


Extreme efficiency and cost-effectiveness

GHL understands the importance of ongoing costs involved with automated KH monitoring and control. For the KH Director, it was especially important to consider these costs and develop a highly-efficient, cost-effective product. A single 1000mL bottle of reagent can last for up to 3 months when testing is performed 4 times per day at a KH value of 8. The pH electrode used by the KH Director was specially designed for KH measurement and has an average lifespan of 1 – 2 years.


Download the GHL Connect App

Google Play Store

iTunes App Store



KH Director Dimensions - 8.75" L x 6" W x 3" H

Doser 2.2 SA Dimensions - 8.75" L x 6" W x 3" H

Power Input - 24 V

pH Probe Calibration Points - pH 4 & pH 7


What's Included?

KH Director Body (White)

Doser 2.2 SA (White)

pH Probe

500 mL KH Director Reagent

4.0 pH Calibration Solution

7.0 pH Calibration Solution

8x Dosing Connectors


Power Splitter Cable

24 V Power Supply

6 ft USB Cable

Silicone Tubing

Flex PVC Reagent Tubing

Write Your Own Review
You're reviewing:KH Director with Doser 2.2 SA (White) (OPEN BOX)
Your Rating
Only registered users can write reviews. Please or

Product Questions

No questions yet. Be the first to ask the question!