Hanna Checker

Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only provides the carbonate ion...

Hanna Instruments Marine Waterproof Salinity tester

Product information "HI98319 Waterproof Marine Salinity Tester"   The HI98319 is a digital salinity tester designed specifically for saltwater aquariums and displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or...

Hanna Reagent Refill

are the replacement reagents for the Checkers These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability. Pre-made reagents for ease...

Hanna Reef Professional Kit

Monitor the health of your saltwater reef aquarium with the Reef Professional Kit for Alkalinity (dKH), Calcium, Phosphorus (ULR phosphate), and pH. Water quality is the most important aspect of a healthy reef aquarium. Remove subjective results and...

Hanna Refractometer HI96822

The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per...