Hanna Instruments 758 – Marine Calcium Colorimeter – Checker® HC

Hanna Instruments HI758 – Marine Calcium Colorimeter – Checker® HC 🪸📏

Ensure optimal calcium levels in your reef tank with the Hanna Instruments HI758 Marine Calcium Checker® HC. This easy-to-use handheld colorimeter removes the ambiguity of traditional color charts by delivering fast, digital results in ppm—essential for supporting coral growth and maintaining reef stability. 🐠🔬

🧂 Coral Health Starts with Calcium

Calcium is one of the most important parameters in saltwater aquariums. The HI758 provides accurate readings in parts per million (ppm), helping you dose precisely and keep your system stable—whether you're keeping SPS, LPS, or mixed reefs.

🖐️ Simple, Digital Testing

Forget the guesswork of titration kits. The HI758 uses a colorimetric method with digital readout: just add reagent, insert the sample, and push the button for results you can trust.

🔗 Pairs with HI758-26 Reagents

This meter is designed to work with HI758-26 reagent refills (sold separately), which provide 25 tests per pack using pre-measured powder packets.

🔑 Key Features

• Measures calcium in saltwater from 200 to 600 ppm
• ±6% of reading @ 25°C accuracy
• Resolution: 1 ppm
• Colorimetric method with calmagite indicator
• One-button operation with LCD digital display
• Portable and easy to use

📦 What’s Included

• HI758 Checker® HC Colorimeter
• Sample cuvettes with caps (2)
• Starter reagent packets (6 tests – HI758-26)
• 1.5V AAA battery
• Instruction manual

Protect your reef’s foundation with the Hanna HI758 Marine Calcium Checker® HC—a trusted tool for every saltwater enthusiast seeking accuracy and simplicity. 🧪🌊

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