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Measure & Test

Hanna Checker HC HI781 für Nitrat in Meerwasser, ultra niedrig

Hanna Checker HC HI781 für Nitrat in Meerwasser, ultra niedrig
Hanna Checker HC HI781 für Nitrat in Meerwasser, ultra niedrig
Hanna Checker HC HI781 für Nitrat in Meerwasser, ultra niedrig

Marine Nitrate low range handheld Colorimeter

  • range 0,0 - 5,00 ppm
  • Compact, Portable Design

  • One-Button Operation

  • Manufacturer:Hanna Instruments
  • Item number:14261
  • Included:HI781 Checker HC is supplied with cuvettes with lids (2), reagent set (for 25 tests), filter holder, 10 mL syringe, 5 mL syringe with tip, mixing barrel with cap, battery and operating instructions.
  • Best before date:28.02.2026
70,21 €

including 19% VAT ,

Recommended retail price: 70,21 €

Mini photometer for the measurement of Ultra low marine Phosphate

The Hanna Marine Low Range Nitrate Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Marine Nitrate Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.

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 color and paleness. The HI781 Nitrate Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of nitrate colorimetrically. The Hanna Instruments HI781 is designed specifically to measure low levels of nitrate in a saltwater aquarium. The 0.00 to 5.00 ppm (mg/L) range is ideal for reef aquarium maintenance.

Designed as a more accurate alternative to chemical test kits, the HI781 provides quick, accurate results.

Measurement Range: 0,00 bis 5,00 ppm (mg/L) NO3
Operating Environment: 0 to 50 °C, rel. humidity max. 95 %.
When opened, the HI781A-0 liquid reagent of the HI781-25 kit has a shelf life of up to 3-6 months.
PDF Hanna Instruments HI781 Manual