The HI-97105C Hanna Marine Master Photometer provides a multiparameter solution for accurately measuring the water in saltwater aquariums. This fish tank photometer measures vital parameters that provide insight into the quality of water, which is...

The HI-96822 digital refractometer is a rugged, portable, water resistant device that uses the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish intermediates. The HI-96822...

The HI-97105 is designed to accurately determine pH, Alkalinity, Calcium, Nitrate, Nitrite, and Phosphate levels in aquariums and marine Biology applications.  Alkalinity, Calcium, Nitrate, Nitrite, pH, Phosphate The HI-97105 Marine Master Photometer combines accuracy and...