Hanna Instruments HI784 / 784 – Marine Nitrate High Range Colorimeter – Checker® HC

Hanna Instruments HI784 – Marine Nitrate High Range Colorimeter – Checker® HC 🐠🧪

Quickly and accurately measure high-range nitrate levels with the Hanna Instruments HI784 Marine Nitrate HR Checker® HC. Also referred to as the Hanna 784, this handheld digital colorimeter provides a reliable alternative to color charts, ensuring precise readings for reef aquariums. 🌊🔬

🌿 Monitor Nutrients with Confidence

Excess nitrate can cause algae growth, while too little may affect coral health. The HI784 is designed to measure nitrate in parts per million (ppm) from 0.0 to 75.0, making it ideal for fish-only tanks, mixed reefs, and systems where elevated nitrate is common.

🖐️ Simple, Digital Testing

No more guesswork with color kits. Just add reagent, insert the cuvette, and press a button—the HI784 delivers a digital result in seconds that you can trust.

🔗 Pairs with HI784-25 Reagents

Compatible with HI784-25 reagent refills (sold separately), which provide 25 tests per pack.

🔑 Key Features

• Measures nitrate in saltwater from 0.0 to 75.0 ppm
• ±2 ppm ±5% of reading accuracy
• Resolution: 0.1 ppm
• Digital colorimeter with one-button operation
• Clear LCD display for fast, accurate results
• Portable, reef-safe design

📦 What’s Included

• HI784 Checker® HC Colorimeter
• Two sample cuvettes with caps
• Starter reagent packets (6 tests – HI784-25)
• 1.5V AAA battery
• Instruction manual

Keep your reef system balanced with the Hanna HI784 Marine Nitrate HR Checker® HC—the trusted digital tool for reliable high-range nitrate testing. 🪸🧪

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