Hanna Checker Nitrate Saltwater Low Range (HI781)
The HI781 Checker HC (Handheld Colorimeter) 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 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 HI781 is designed specifically to measure low levels of nitrate in a saltwater aquarium.
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Resolution: 0.01 ppm
Accuracy 25 ° C / 77 ° F : ± 0.25 ppm ± 2% of reading
Light source: LED @ 525 nm
Light detector: silicon photocell
Method: zinc reduction method
Automatic deactivation: after ten minutes of non-use
environment: 0 to 50 ° C (32 to 122 ° F); RH max 95% without condensation
Battery Type: (1) 1.5V AAA
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