Monitor the health of your saltwater reef aquarium with the Reef Professional Kit for Alkalinity (dKH), Calcium, Phosphorus (ULR phosphate), and pH. ... Hanna Marine Alkalinity (dKH) Checker® HC - HI772. 

INCLUDED IN THE KIT...

• Marine Alkalinity Checker
• Marine Calcium Checker
• Marine Ultra Low Range Phosphorus Checker
• pH Pen - pHep
• Digital equipment for accurate results
• Complete kit includes everything you need, so you can start testing today. 
• Specifically chosen for use in saltwater reef aquariums
• Electrode storage solution