Review on 🌊 Hanna Marine Alkalinity Checker HC - HI772: Accurate & Efficient dKH Measurement by Shannon Reynolds

More tricky to use than just dripping the solution into a vial, but should be more accurate. Used several times, then set aside until the Red Sea Alk Test Solution is used up. which is just faster and easier. The standard battery didn't make good contact, every time I opened the lid it turned off making it impossible to use as you had to open/close it twice to do a test (calibrate then measure). I replaced it with a new battery and everything was fine.