Handheld Marine Alkalinity Colorimeter

Hanna Marine Alkalinity Checker (HI772) The Hanna Marine Alkalinity Checker (HI772) is a digital colorimeter that provides fast, accurate alkalinity measurements for saltwater aquariums. It eliminates the guesswork of traditional color-matching test kits by displaying a precise digital reading in dKH, making it an essential tool for maintaining stable water chemistry and promoting healthy coral growth.   Features: Digital alkalinity testing for saltwater and reef aquariums Measurement range: 0.0–20.0 dKH Resolution: 0.1 dKH Accuracy: ±0.3 dKH ±5% of reading Easy-to-read LCD display with one-button operation Includes reagents for 25 tests Compact, portable handheld design Helps maintain stable alkalinity to support coral growth, pH stability, and overall reef health.