Hanna Instruments HI735 | Total Hardness Low Range Colorimeter – Freshwater GH | Handheld Checker

Maintain healthy freshwater aquariums with the Hanna Instruments HI735 Total Hardness Low Range Checker® HC. This handheld digital colorimeter gives you precise General Hardness (GH) readings in parts per million (ppm), helping you monitor calcium and magnesium levels for fish, shrimp, and plants. 🐟🌿

🌿 Essential for Freshwater Health

General Hardness (GH) reflects the concentration of calcium and magnesium in water—vital for osmoregulation in fish, molting in shrimp, and nutrient uptake in plants. The HI735 makes testing easy, ensuring your freshwater system stays balanced and thriving.

🖐️ Accurate, Easy Testing

Forget the guesswork of liquid test kits. Just add reagent, insert the cuvette, and press a button—the HI735 delivers clear digital results in seconds.

🔗 Pairs with HI735-25 Reagents

Use with HI735-25 reagent refills (sold separately), which provide 25 tests per pack with pre-measured convenience.

🔑 Key Features

• Measures Total Hardness (GH) in freshwater from 0 to 350 ppm (mg/L) as CaCO₃
• ±5 ppm ±5% of reading accuracy @ 25°C
• Resolution: 1 ppm
• Digital LCD display with one-button operation
• Compact, portable, and user-friendly

📦 What’s Included

• HI735 Checker® HC Colorimeter
• Two sample cuvettes with caps
• Starter reagent packets (6 tests – HI735-25)
• 1.5V AAA battery
• Instruction manual

Protect your freshwater ecosystem with the Hanna HI735 Total Hardness Low Range Checker® HC—a reliable and simple tool for every aquarist. 🧪🐠

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