Product Info
The HI-781 Nitrate Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of nitrate colorimetrically.The HI-781 is designed specifically to measure low levels of nitrate in a saltwater aquarium. The 0.00 to 5.00 range is ideal for reef aquarium maintenance.
Nitrate is a by-product of the Nitrogen cycle. Excessive amounts of Nitrates in a reef aquarium can promote the growth of undesirable organisms including algae and dinoflagellates, while insufficient amounts can lead to starvation in which SPS, and other corals, will show signs including the loss of colour and paleness.Ideal for aquariums and marine biologyEasier to use and more accurate than chemical test kitsSmall size, big convenience
The Checker®HC handheld colorimeter is supplied with:
- Sample cuvette and cap (2)
- Marine Nitrate Low Range reagent starter kit (reagents for 25 tests)
- Filter paper (25)
- Filter holder (1)
- Mixing vial and cap (1)
- 5 mL syringe with tip (1)
- 10 mL syringe with tip (1)
- 1.5V AAA Alkaline battery (1)
- Instruction manual
Hanna Checker Nitrate Low Range HI-781 (Saltwater)
Range - 0.00 to 5.00 ppm (mg/L) NO₃-
Resolution - 0.01 ppm
Accuracy @ 25°C/77°F - ±0.25 ppm ±2% of reading
Light Source - LED @ 525 nm
Light Detector - Silicon photocell
Method - Zinc reduction method
Auto Off - After ten minutes of non-use
Environment - 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type - (1) 1.5V AAA
Ordering Information - HI-781 Checker HC is supplied with sample cuvettes with caps (2), nitrate reagent starter kit (reagents for 25 tests), filter holder, 10 mL syringe, 5 mL syringe with tip, mixing vial with cap, battery, and instructions.
Accessories - HI-781-25 Reagent set for 25 tests | HI-781-11 Calibration set
