Hanna Alkalinity Checker HC (HI772)
Keep your reef stable and your corals growing with confidence using the Hanna Alkalinity Checker HC (HI772). This handheld digital colorimeter is specifically calibrated for marine water, giving accurate dKH (carbonate hardness) readings without relying on colour interpretation.
🔹 Why monitor alkalinity?
Alkalinity (KH) buffers against pH swings and supports coral calcification. Maintaining a stable range of 7–11 dKH is essential for healthy coral growth and system balance.
🔹 Key Features:
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Measures directly in dKH for reef-specific accuracy
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Digital readout eliminates subjectivity of colour charts
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High resolution: ±0.3 dKH with repeatable results
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Fast, simple 3-step process: zero, react, read
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Compact design with easy one-button operation
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Includes reagents for 25 tests, cuvettes, and battery
🔹 Perfect for:
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SPS/LPS reef systems with precise dosing needs
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Users of automated dosing or calcium reactors
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Aquarists looking for quick, objective alkalinity control
🔹 What’s in the box:
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HI772 Alkalinity Checker
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2 sample cuvettes with caps
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1 10 mL syringe & tip
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Reagents for 25 tests
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Battery and user guide
Rely on Hanna’s marine-grade accuracy to maintain reef stability—because when it comes to KH, consistency is everything.