More Hanna Checkers in development: magnesium, salinity, and ammonia

Hanna Instruments isn’t content with just adding alkalinity, calcium, and nitrate to their line of Hanna Checkers. The president of the company let slip that they are indeed working on magnesium, salinity, ammonia along with calcium and alkalinity that we…

Hanna Checker Colorimeters will be available in Alkalinity, Calcium, and Nitrate

Hanna Instruments popular “Hanna Checker” line of colorimeters are set to get expanded into other water parameters. With the President of Hanna Instruments Martino touting  on a reef forum that “Alkalinity, Calcium, and  Nitrate” are in the works with possible…

Hanna introduces affordable ultra low range phosphate checker

Hanna Instruments added another great product to its small and simple “Checker” line of products with its Phosphorus Ultra Low Range Checker. The new model, HI 736, is similar to the previously released HI 713 Phoshate Checker except taking the…

Hanna Instruments new PO4 checker phosphate colorimeter

Hanna Instruments has released a new phosphate checker colorimeter that should make it easier for you to check your water parameters or at least phosphate. The new phosphate colorimeter has a resolution of 0.01 ppm (250 points) and 4% ±0.04…

Hanna Instruments digital refractometer, compensates for reef aquarium temperature

The new digital refractometer from Hanna Instruments is one svelte and highly accurate new electronic machine for testing the salinity of seawater. The $200 device is bileld as scientific and research grade: it may be overkill for many hobbyists but…