Hanna HI774 Marine Phosphate Checker ULR – Ultra Low Range Digital Test Kit

The Hanna HI774 Marine Phosphate Checker ULR (Ultra Low Range) is a high-precision digital colorimeter designed to measure extremely low phosphate levels in marine and reef aquariums.

Maintaining ultra-low phosphate levels is critical for preventing algae growth and ensuring optimal coral health and coloration. Unlike traditional test kits, the HI774 provides fast and accurate digital readings, eliminating guesswork and improving consistency.

This checker is ideal for reef hobbyists who require precise control over nutrient levels, especially in SPS-dominated systems.

🔹 Key Features

✔ Ultra Low Range phosphate measurement (ULR)
✔ High-precision digital readings (ppb/ppm)
✔ Designed for marine & reef aquariums
✔ Eliminates color comparison errors
✔ Fast and easy testing process
✔ Compact and portable device

🔹 Benefits

• Maintains ultra-low nutrient levels
• Prevents nuisance algae growth
• Enhances coral coloration and health
• Provides highly accurate results
• Supports advanced reef systems (SPS/LPS)

🔹 How to Use

1. Fill cuvette with aquarium water sample
2. Zero the checker
3. Add reagent and mix thoroughly
4. Insert cuvette into device
5. Read phosphate level digitally

🔹 Specifications

• Model: HI774
• Parameter: Phosphate (Ultra Low Range)
• Application: Marine & reef aquariums
• Display: Digital LCD
• Method: Colorimetric measurement