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Hanna Instruments

Hanna Checker®HC Nitrate colorimeter, LR (NO3)

Hanna Checker®HC Nitrate colorimeter, LR (NO3)

Regular price €89,90 EUR
Regular price Sale price €89,90 EUR
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Delivery and return

Delivery from our own warehouse within a week. You can also pick up the product from our store! If the product is not in stock immediately, we will order it from our supplier, in which case the delivery time is 1-2 weeks.

Hanna Checker - Nitrate LR (NO3) Colorimeter

The HI781 Nitrate Checker LR by Hanna Instruments is a simple and accurate handheld colorimeter that uses the Beer-Lambert principle to determine nitrate concentration.

The HI781`s low range of 0.00 - 5.00 makes it ideal for measuring the low nitrate levels found in Saltwater aquariums.

Why are Nitrate levels important?

Excess nitrates in a Reef system can lead to an overgrowth of undesirable algae and dinoflagellates. Alternatively, not enough nitrates can lead to starvation for SPS and other corals.


  • Low range is ideal for saltwater aquariums
  • Easier to use and more accurate than chemical test kits
  • Dedicated to a single parameter
  • Simple one-button operation
  • Digital read out for added convenience


  • Range: 0.00 to 5.00 pm (m/L) NO3
  • Resolution: 0.01 pH
  • Accuracy @ 25°C/77°F: ±0.25ppm ±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), reagent starter set, battery, and instructions
  • Accessories purchased separately: HI-781-25 Reagent set for approx. 25 tests + HI-781-11 Calibration set

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