Hanna Marine Magnesium Checker HC - HI783 aquarium salinity tester Automatic Calibration

Automatic Calibration

When to Replace Your Sediment Filter

Protected Storage: Hard case with foam inserts prevents damage and keeps accessories organized

Optically clear borosilicate glass: High-quality construction ensures accurate light transmission for reliable measurements

pH Value: @25°C 6

Hanna Marine Magnesium Checker HC - HI783 aquarium salinity tester Automatic CalibrationThe first Magnesium test of its kind for saltwater aquariums, our Marine Magnesium Checker HC (HI783) is just what every reef tank owner needs. Struggling with test kits is now a thing of the past. Stop guessing or interpreting a color change by eye. Get a fast, accurate digital read out every time. Perfect for testing and measuring Magnesium levels in saltwater aquariums, reef tanks, and other marine and aquaculture applications. Easy to read,