- KH Director with White 2.1 SA 4-Pump Doser - GHL
Automatically Monitor, Maintain, and Control your Aquariums Alkalinity!
The KH Director is the result of more than 2 years of research and development into the automated Alkalinity monitoring and control department. 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.
- Lab-grade KH measurement with 0.1° dKH accuracy
- Adjustable test sample volume
- Measurements per day adjustable
- KH value display capabilities*
- 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
- WLAN, USB, and cloud-service access*
- Alarm functionality
- Large LED status indicator
Download the GHL Connect App
Automated Alkalinity Monitoring and Control
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.
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 or 2.1 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 on-going 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 4x 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.
KH Director Dimensions - 8.75" L x 6" W x 3" H
2.1 SA Doser Dimensions - 8.75" L x 6" W x 3" H
Power Input - 24V
pH Probe Calibration Points - 4pH & 7pH
1x KH Director Body
1x GHL 2.1 SA White Body Master 4-Head Dosing System
1x pH Probe
1x 500 mL KH Director Reagent
1x 4.0 pH Calibration Solution
1x 7.0 pH Calibration Solution
8x Dosing Connectors
1x GHL PAB Cable
1x Power Splitter Cable
1x 24V Power Supply
6ft USB Cable
5m Silicone Tubing
70cm Flex PVC Reagent Tubing
*The KH Director is designed to work in conjunction with a GHL Doser 2.1 Standalone or a ProfiLux Aquarium Controller 3 or 4 with a Doser 2.1 slave for operation. Also the use of a PC or smartphone along with the free GCC, GHL Connect, or myGHL software.
Accuracy and consistency in measuring KH By Mike on 4/1/2020Mike would recommend this product to a friendAfter setting up the device and tuning (about 2 days process). That was about 1 month ago. I am very happy with the accuracy and consistency of the KH measurements.
To get the best results it is important to setup and tune only after fully reading the manual.
Buyer Beware! By David on 3/15/2020David wouldn't recommend this product to a friendI used Neptune products for over 10 years on several different tanks and was very pleased overall. With GHL recently announcing the release of the ION, I decided to switch over and try some of their products. I purchased the Master Doser, KH Director, Slave Doser and pre-ordered the ION...in all $1,800+ dollars spent on GHL products. I ordered from a local store who placed the order and then we waited 2-3 weeks for the products to arrive! After finally receiving the products, I setup the Director/Doser precisely as laid out in GHL's 3 part video on YouTube. I ran the unit twice and the Doser fried due to a defect in how it's made. GHL refused to cover the unit under warranty and charged me $110 (plus the cost to ship the unit back) to repair the unit. Needless to say, I returned all my GHL gear and will not be purchasing from them again. If you are looking for a company who stands behind their products I would suggest looking elsewhere.
Prepare to work By Philip on 3/6/2020Philip would recommend this product to a friendMeasures my alkalinity for me each day, however some issues.
You will need to be meticulous with your calibration of the unit. You will absolutely need their 7.5 dkh calibration liquid, and a 5ml graduated cylinder measuring 10th of ml, precise KH measring kit (such as Red Sea), and long USB cable to reach computer comfortably.
Additionally, it will be a nightmare to figure out the software. The downloads page is completely unorganized, and the Windows GHL control center fails with many small issues, especially the WIFI, you will need to know the devices IP address : /, and static IP feature in their videos doesn't work (at least for me), and so on and so on. USB always works, once WIFI is attempted you will need to use USB cable. The myGHL online feature and logging of the KH measurements needs WIFI, which always cuts out. Sometimes becomes uncalibrated, and need to reexamine, been little over a month I think calibration issues are going away. In short, prepare to work very hard if you want this to work.
All good but... By Rudolphus A. F. on 2/20/2020Rudolphus A. F. would recommend this product to a friendAll good but the Probe cable is way too short!
Love my KHD! By William on 5/7/2019William would recommend this product to a friendI purchased the KH director as soon as it was released in December of 2017. It has performed extremely well on my tank setup, testing 6x a day for over a year now. It tests and adjusts my alkalinity as well as my calcium levels, keeping them very consistent. Alkalinity stays within .2dkh. I would never run a tank without one now that I've been using it for over a year. GHL makes very nice equipment that is rock solid and they continue to release new products that all work together to make reefing easier!