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Calcium Colorimeter HI758 Hanna Checker HC - Marine Water

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Calcium Colorimeter HI758 Hanna Checker HC - Marine Water

SKU: 206202
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  • Great tester thats easy to read By Christopher on 2/11/2015

    Love this tester, no more counting drops, or measuring the amount of reagent used. Worked great at fist then everything got stuck at 600ppm. Contacted hanna and their customer support was top notch, sent me a new set of reagents and even a bottle of their own DI water for testing. Now my testing is right back to being spot on.
  • Accurate and Easy By Ceasar on 2/4/2015

    Makes testing really simple. Just add reagent fluid, fill to 10 ml line with ro water, and add reagent powder. Once a month i just check to make sure that everything is working perfectly fine by checking the calcium on my newly mixed reef crystals water and I come up with the same reading each time.
  • Easy to use and accurate By Ceasar on 2/4/2015

    Everyone can agree that testing can be a pita, but with hanna it is a breeze. Just collect some water from your aquarium and add some reagent, and place into the tester. Eliminates the headache of wondering if you matched it to the right color on the chart or not.
  • Accurate, but takes getting used to By Keith on 2/2/2015

    This is a very accurate tester, but you need to follow the directions to the letter or you will get a blinking 600 reading.
  • Great Results By Craig on 1/28/2015

    The Checker is the way to go! While it takes a few more steps to perform the test the results are quick, and easy to read.
  • Constant and Reliable By MIke on 1/14/2015

    I have been testing with kits for years. Hanna has does it again and provided an affordable and reliable solution and has eliminated the eyesight guessing game. If you can follow instructions and accuracy is what you are after, this meter is for you.
  • Good product By Joshua on 1/13/2015

    A little complicated at first but acurate can't go wrong with this product
  • ro/di with zero tds is the key! By CaliOCorals on 1/8/2015

    Your readings will be off if you use any water but Ro/di with 0 tds.. make sure to add the 1ml of reagent A before adding the 9ml of ro/di. Make sure your level when filling to the line..

    DO NOT GET WATER IN THE DEVICE! which means wipe the vial clean before it goes in every time.. if the vial or inside of the device isnt clean your reading will be off.

    Wish it was cheaper per test.
  • Tricky but works. By DivingTheWorld on 12/19/2014

    I have not used other Calcium test kits, but this one is a little tricky with measurement of the reagent. That said, its fairly easy to use and my results seem accurate.
  • Worked like a charm! By Darren on 12/15/2014

    No more "guestimating" when it comes to the life omg saltwater tank. I bought this along with the Alkalinity and Phosphate checker. These gadgets makes it fast, easy and accurate when getting your tank parameters in order. If you love your tank then you'll love these checkers.

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