Hanna HI783 Marine Magnesium Checker HC Colorimeter - Checker® HC in stock Cables This means the pumps on

This means the pumps on the DŌS may have up to as much as 12x the lifespan of others

Super Quiet Operation - Perfect for places where any noise is not tolerable

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THE PROBLEM

120V AC Outlets all switched with relays rated for millions of cycles

Hanna HI783 Marine Magnesium Checker HC Colorimeter - Checker® HC in stock Cables This means the pumps onGet accurate results for your saltwater aquarium with our simple handheld 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