Home > Marine Magnesium Checker HC Handheld Colorimeter - HI783
Hanna Instruments

Marine Magnesium Checker HC Handheld Colorimeter - HI783

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Product code: IC-HI783

Backorder Now, once ordered your item will dispatch before the 14th of May 2025, call 1300 737 871 (NZ 0800 737 871 to confirm).

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.

- Ideal for aquariums and marine biology

- Easier to use and more accurate than chemical test kits

- Small size, big convenience

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$128.20 AUD + GST
 $141.03 AUD Inc. GST
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.

Specifications

- Range: 1000 to 1800 ppm Magnesium
- Resolution: 5 ppm
- Accuracy: +/- 5% of reading at 25 C
- Light source: Light Emitting Diode at 610 nm
- Light detector: Silicon photocell
- Method: Adaptation of the colorimetric EDTA method using calmagite indicator. The reaction between magnesium and the reagents causes a blue to violet tint in the sample.
- Environment: 0 to 50 C; max. 95% RH non-condensing Prepared sample cuvette (sample plus reagents) must be 18 to 28 C.
- Battery type: 1.5V AAA Alkaline

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