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The Hanna Checker® for low-range nitrates in seawater (ppm) is a good compromise between choosing simple chemical test kits and professional-quality instrumentation. Chemical test kits have limited accuracy and resolution because they are based on distinguishing color differences perceived by the human eye.
Professional quality instrumentation includes a light source composed of a LED or a tungsten lamp with a filter and a light detector to accurately determine the absorbance and concentration of ions. Professional tools offer superior resolution and precision but can cost hundreds of euros.
The Checker ® Hanna for Nitrates in seawater, it measures the nitrate value in ppm and uses an LED source with a fixed wavelength and a silicon photoelectric cell to ensure the accuracy of professional equipment at the affordable price of a chemical test kit.
Nitrate is a byproduct 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 problems for SPS and other organisms. corals, including the loss of color and the appearance of paleness.
The HI781 Checker is a portable colorimeter that uses the Beer-Lambert principle to determine the concentration of nitrate through colorimetry. The HI781 is specifically designed to measure low levels of nitrate in a saltwater aquarium. The scale ranges from 0.00 to 5.00 ppm (mg/L), making it ideal for maintaining reef aquariums.
- Compact and portable
- Built-in timer
- Suitable for seawater
- Easier to use and more accurate than chemical test kits
- Small size, great convenience
- Ideal for aquariums and marine biologists
| Nitrate scale | 0.00 to 5.00 ppm (as NO)3-) |
|---|---|
| Nitrate resolution | 0.01 ppm |
| Precision nitrates | ± 0.25 ppm ± 2% of the reading at 25 °C |
| Nitrate Method | Colorimetric method.The reaction between the nitrate and the reagent causes a pink/purple tint in the sample.This verifier was developed to work with seawater samples. |
| Photometer / light source colorimeter | 525 nm LED |
| Photometer / colorimeter with light detector | Silicon photoelectric cell |
| Battery type / duration | 1.5V AAA battery |
| Automatic shutdown | After 10 minutes of inactivity |
| Terms of Use | from 0 to 50°C;max.95% RH without condensation |
| Weight | 64 grams |
| Dimensions | 86.0 x 61.0 x 37.5 mm |
| Order information | The HI781 Marine Nitrate High Range Checker HC is supplied with sample cuvettes with caps (2), a nitrate starter kit (25 tests), a filter holder, a 10 ml syringe, a 5 ml syringe with tip, a mixing bottle with a cap, a battery, and an instruction manual. |
| Remarks | The presence of nitrites and copper will interfere with the measurement. |