Nitrate High Range Colorimeter HI782 – Marine Water

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  • Warranty 1 year
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The HI782 Nitrate Checker HC by Hanna Instruments is a simple and accurate handheld colorimeter that uses the zinc reduction method to determine nitrate concentration in marine applications. With a digital read out, there is no more struggling to determine colors visually. The HI782`s high range of 0.0 – 75.0 ppm makes it ideal for measuring high nitrate levels found in saltwater aquariums.


  • Designed to accurately determine nitrate levels in aquariums and marine biology applications
  • Only requires 1 reagent for simplicity
  • No filter process
  • Measures with a range up to 75.0ppm
  • Easier to use and more accurate than chemical test kits
  • Dedicated to a single parameter
  • Simple one-button operation
  • Large LCD digital read out for added convenience
  • Auto shut-off to assure the battery wont be drained
  • Compact size for easy travel and storage
The HI782 Checker is a simple, accurate, and cost-effective way to measure nitrate in your saltwater aquarium.
Nitrate is a by-product of the Nitrogen cycle. Excessive amounts of nitrates in a reef and fish only aquariums can promote the growth of undesirable organisms including algae and dinoflagellates which can quickly choke out filtration, lighting, and sessile organisms.


  • Range: 0.0 to 75.0 ppm (as NO3-)
  • Resolution: 0.1 ppm
  • Precision: ±2 ppm ±5% of reading @ 77°F (25°C)
  • Light Source: LED @ 525 nm
  • Light Detector: Silicon photocell
  • Environment: 0 to 50°C (32 to 122°F); max 95% RH non-condensing
  • Battery Type: (1) 1.5V AAA
  • Auto-off: After 10 minutes of non-use
  • Dimensions: 86 x 61 x 37.5 mm (3.4 x 2.4 x 1.5″)
  • Weight: 64 g (2.3 oz.)
  • Method:Zinc reduction method. The reaction between nitrate and the reagent causes a pink tint in the sample.
  • Interferences: Nitrite

What’s Included?

  • (1x) HI782 Checker HC
  • (1x) Sample cuvette and (2x) caps
  • (1x) Marine Nitrate High Range Starter Kit (reagents for 10 tests)
  • (1x) 3mL Pasteur pipette
  • (1x) 1.5V AAA Alkaline battery
  • (1x) Instruction manual

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