Monitor, maintain, and control Alkalinity with ease

If you’re looking to achieve exceptional coral growing conditions, Alkalinity testing is a must!
Keep it steady with the new GHL KH Director®.

Get a first-hand look at the KH Director®, shown first at MACNA New Orleans!

Fully control and automate Alkalinity supplementation like a PRO! Lab grade quality and precision, only the best for your reef.



  • Fully automated control of Alkalinity/Carbonate hardness
  • Lab grade quality and precision
  • 0.1°dKH measurement value accuracy
  • Measurement value data logging
  • Compatible with ProfiLux 3, 4, and GHL Doser
  • Data viewable on ProfiLux display, ProfiLux Touch, or myGHL; additional external display unit optional
    LED status display, myGHL cloud accessible (via GHL Doser or ProfiLux 3 or 4)

The KH Director® is designed to work in conjunction with a GHL Doser 2 Standalone or a ProfiLux Aquarium Controller 3 or 4 with a Doser 2 Slave for operation. The 2 inlets and 1 outlet of the KHD connect to 3 dosing pumps on the Doser 2 (2.1). These 3 pumps are then responsible for accurately transferring fluid to and from the KHD.

Final price and shipment date are still in clarification – further details will be announced first week in September 2017!