Hanna Checker – Magnesium colorimeter
The HI783 Marine Magnesium Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of magnesium colorimetrically .
The HI783 is designed specifically to measure magnesium levels in a saltwater aquarium or in marine biology applications . The 1000 to 1800 ppm range is ideal for coral/fish or fish-only aquarium maintenance.
Magnesium is the third most abundant ion in seawater , surpassed only by sodium and chloride. Its abundance is critical in the formation of weak ion pairs with carbonate ions. This allows calcium and carbonate ions to be available for uptake by corals and invertebrates. Low levels of magnesium lead to low or unstable levels of calcium and alkalinity. Signs of low magnesium levels include precipitation of calcium as insoluble calcium carbonate and impaired inhabitant growth and health.
Features
Ideal for aquariums and marine biology
Easier to use and more accurate than chemical test kits
Small size, big convenience
Measures with a range from 1000 up to 1800ppm
Easier to use and more accurate than chemical test kits
Simple one-button operation
Large LCD digital read out for added convenience
Auto shut-off to assure the battery wont be drained
Compact size for easy travel and storage
The HI783 Checker is a simple, accurate, and cost-effective way to measure magnesium in your saltwater aquarium.
Specifications
Range: 1000 to 1800 ppm Magnesium
Resolution: 5 ppm
Precision: ±5% of reading @ 25°C (77°F)
Light Source: LED @ 610 nm
Light Detector: silicon photocell
Method: Beer-Lambert
Auto-off: after 10 minutes of non-use
Dimensions: 86.0 x 61 x 37.5 mm (3.4 x 2.4 x 1.5″)
Weight: 64 g (2.25 oz.)
Interferences: Calcium below 300ppm & above 500ppm
Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type: (1) 1.5V AAA
Ordering Information: HI-783 Checker HC is supplied with sample cuvettes with caps (2), Marine Magnesium reagent starter set (25tests), 1 mL graduated syringe and tip (1), 5 mL syringe and tip with black printing (1), 5 mL syringe and tip with blue printing (1), 1.5V AAA Alkaline battery (1) and instruction manual & quick reference guide
Accessories purchased separately: HI-783-25 Reagent set for approx. 25 tests
