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MarineDepot

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Limited initial quantities. Pre-order yours today! SHOP NOW!

The HI781 Nitrate Checker HC 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.

Features:
  • 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
  • Compact size for easy travel and storage
Social_Nitrate Checker .jpg


 

shakygator

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This there an estimated shipping date?
Hanna is also taking preorders on their site which says: Expected ship dates are October 1-31st


Low range is ideal, but for me this checker is too low.
There is a dilution method to read up to 50ppm. Per the Hanna site:

For samples containing 0.0 to 50.0 ppm nitrate, follow the dilution procedure.
 

Mhart032

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I'm fine with the dilution step, i have to do it with my calcium reactor on the calcium side already, so not that big of a deal. But prob correct with some of the reefers that don't understand the testing portion of the hobby just yet. wait till they get into the more daunting testing. some of them are like ugh seriously..
 

jimc40

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I keep my nitrates above 5. Glad I saw these instructions between having to do dilution and these instructions I will not be buying.
 

shakygator

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I keep my nitrates above 5. Glad I saw these instructions between having to do dilution and these instructions I will not be buying.
I'm cancelling my preorder....I'll stick to Salifert until reviews come out on this. Pretty bummed as I was waiting all summer for this to come out.
 

jimc40

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I'm cancelling my preorder....I'll stick to Salifert until reviews come out on this. Pretty bummed as I was waiting all summer for this to come out.
I am using the exact iDip marine for testing nitrates it works well for my use
 

jimc40

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Wasn't aware of that. Pricey startup costs but nice it would test alk, cal, no3, and po4.
I only use it for nitrate and phosphate and once figured out it is very user friendly. I use a trident for alk cal mag.
 

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