Red Sea Alkalinity Pro Test Kit - Advanced alkalinity titration test. Red Sea's KH/Alkalinity Pro Test Kit is an advanced titration test, measuring the level of buffers in your reef aquarium to an exceptionally high accuracy of 0.05 meq/l (0.14 dKH). Red Sea's Alkalinity Pro test kit enables the accurate dosing of Red Sea's Reef Foundation B supplement (buffer) which is part of the complete Red Sea Reef Care Program.