Hanna Nitrate (LR) Low Range Checker HC – HI781 Test Kit
The HI781 Marine Nitrate Low Range Checker HC is a handheld colorimeter designed for accurate measurement of low nitrate levels in saltwater aquariums. Using the Beer-Lambert principle, the HI781 provides precise colorimetric nitrate readings from 0.00 to 5.00 ppm (mg/L), making it ideal for reef aquarium maintenance.
Key Features
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Ideal for aquariums and marine biology applications
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Easier to use and more accurate than chemical test kits
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Compact and portable design – small size, big convenience
Technical Specifications
| Parameter | Detail |
|---|---|
| Range | 0.00–5.00 ppm NO₃- |
| Resolution | 0.01 ppm |
| Accuracy | ±0.25 ppm ±2% @ 25°C/77°F |
| Method | Zinc Reduction Method |
| Light Source | LED @ 525 nm |
| Light Detector | Silicon photocell |
| Auto-Off | 10 minutes of non-use |
| Battery | 1 × 1.5V AAA |
| Environment | 0–50 °C; RH max 95%, non-condensing |
What’s Included
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Sample cuvettes with caps (2 pcs.)
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Nitrate reagent starter kit (25 tests)
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Filter holder
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10 mL syringe and 5 mL syringe with tip
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Mixing vial with cap
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Battery (1.5V AAA)
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Instruction manual
Why Choose HI781
The HI781 is perfect for reef aquariums, where low nitrate levels are critical for coral health. Excess nitrate can lead to algae and dinoflagellate growth, while insufficient nitrate can cause coral starvation and loss of color. The HI781 provides quick, accurate, and reliable results, making it the ideal choice for marine hobbyists and professionals alike.
