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The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on
Up to 30 discreet dosing points
Water Draw:350 lph / 92 GPH*
but the SDC is on a whole new level
Phosphate Ultra-Low Range Checker - Colorimeter - Hanna Instruments Aquarium Maintenance The selectable auto-off feature prolongsThe HI774 Ultra Low Range Phosphate Checker HC (Handheld Colorimeter) is a cost effective way to measure phosphate in marine systems, including reef tanks. Testing for phosphates is standard practice for saltwater aquariums and provides valuable insight into your reef tank's water chemistry to help ensure long term coral health. Phosphates are one of the many forms of phosphorus compounds found in marine waters. Excessive phosphate levels can prevent
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