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Hanna Marine Alkalinity Checker



Ideal for saltwater aquariums and coral reef tanks the Hanna Marine Alkalinity (dKH) Checker allows for quick, easy and highly accurate measuring.

Hanna’s line of battery powered Checker Testers are more accurate than chemical test kits meaning your water will soon be the best quality it can be!

You results are measured in degrees of calcium hardness, commonly abbreviated as dKH.

Four steps, one click instant readout

  • Zero the Checker
  • Add reagent
  • Insert sample into Checker
  • Press button for results


Supplied with

  • 2 sample cuvettes
  • Cuvette cap
  • Starter pack of reagents. Enough for 25 tests.
  • 1 x 1.5 AAA battery
  • Instructions