Product Description

Hanna HI-782 Marine High Range Nitrate Checker HC Colorimeter

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The HI-782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital read out, there is no more struggling to determine colours visually.

Features Hanna HI-782 Marine High Range Nitrate Checker HC Colorimeter

Measurements with a range up to 75.0ppm
Less complex laboratory grade accuracy – Requires only 1 reagent
Simple, intuitive operation (single button)
Compact and precise whether at home, at work, or on-the-go

Nitrate is the final step in the Nitrogen cycle. Excessive amounts of nitrates in saltwater aquariums facilitate the growth of undesirable organisms such as algae and dinoflagellates.

The HI-782 Nitrate Checker HC uses the Zinc Reduction method, a no filter process, to measure the concentration of nitrate colorimetrically, ultimately reducing the time of each test and leaving no additional waste.

With higher range measurements, such as the HI-782 which ranges from 0.0 up to 75.0 ppm (as NO3–), there is also no dilution procedure needed.

HI-782 High Range Nitrate Checker vs HI-781 Low Range Nitrate Checker

The HI-782 was designed to quickly and easily measure nitrate levels for aquarist with higher-than-average nutrient levels.

This includes saltwater aquariums that are fish-only or have corals that can tolerate elevated levels of nitrate up to 30 ppm or more.

Very low levels of nitrate are critical for many saltwater reef aquariums, as nitrate can cause damage and possible death to certain delicate corals and invertebrates. For this reason, the HI-781 offers unmatched precision in the measurement of very low levels of nitrate (0.00 to 5.00 ppm).

Four steps. One click. Instant Readout

‘Zero’ the Checker®HC with your vial & 10ml water sample inside

Take the vial out and add your reagent

Place your vial into your Checker®HC

Press the button and read the results

Specifications Hanna HI-782 Marine High Range Nitrate Checker HC Colorimeter

Nitrate Range		0.0 to 75.0 ppm (as NO3–)
Nitrate Resolution		0.1 ppm
Nitrate Accuracy		±2.0 ppm ±5% of reading
Nitrate Method		Zinc reduction method. The reaction between nitrate and the reagent causes a pink tint in the sample. This checker has been developed to work with seawater samples.
Photometer/Colorimeter Light Source		LED @ 525 nm
Photometer/Colorimeter Light Detector		silicon photocell
Battery Type/Life		1.5V AAA ; Automatic Shut-Off after 10 minutes of non-use
Environment		0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight		64 g (2.3 oz.)
Dimensions		86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”)
Ordering Information:		HI-782 Checker HC is supplied with sample cuvettes with caps (2), marine nitrate starter kit (reagents for 10 tests), 3 mL Pasteur pipette (1), 1.5V AAA battery (1), and instruction manual.