Digital Phosphate Meter

Discussion in '► Sponsor Request Forum' started by Manic, 31 Mar 2010.

  1. Manic

    Manic Moderator

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    Just wanted to find out if anyone can get these:

    Here's a pic:

    [​IMG]

    Hanna Instruments has recently come out with their new sub $50 Checker phosphate (PO4) colorimeter. It has yet to make much of a splash in the marine aquaria world, but we have a feeling that will soon change after Hanna confirmed with us that this colorimeter will work with saltwater water samples.

    Hanna Checker Colorimeter:
    Works in Saltwater
    0.0-2.5 ppm range
    0.01 ppm resolution
    Offers accuracy of +/- .04 ppm, +/- 4% of reading @ 25C
    Powered by (1) AAA Battery
    Auto-shutoff after 2 minutes
    10ml glass cuvettes

    The hobby’s go-to phosphate colorimeter has long been the Hanna HI 93713 which will set you back roughly $170 USD. When comparing this to the $49 Hanna Checker it seems silly to even consider the HI 9373–they both offer the same resolution, accuracy and range, while the new Checker costs 4 times less.

    The biggest con for the HI 9373 has always been price and accuracy. $170 is a lot of money to pay for water readings that may be 0.1ppm or 0.5ppm. The Checker’s +/- 0.04ppm range is equally large, but the pricetag is drastically lower. If tests are done in a controlled and repeatable manner, this affordable colorimeter will allow aquarists to easily benchmark their phosphate levels without breaking the bank or pulling out a color wheel. Current pricing is $40 at various online stores or $49.50 with free shipping direct from Hanna. Meanwhile, reagents are priced at $8.99 for 25.

    Despite the praise that colorimeters get, remember they are not necessarily more accurate than titration kits. Still, considering the lack of options in low range phosphate testing this is a welcome addition to an aquarists testing arsenal.

    http://glassbox-design.com/2010/hanna-checker-po4-colorimeter/
     
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  3. jacquesb

    jacquesb Retired Moderator

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    Depending on price - also interested!
     
  4. Manic

    Manic Thread Starter Moderator

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    It says it is $40 overseas. Thats cheap...
     
  5. jacquesb

    jacquesb Retired Moderator

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    Manic - $40 x R7.32? = R292....

    OK - I agree.... as long as we don't HAVE to pay: ie. R600 for the same item!
     
  6. FransSny

    FransSny

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    Yip checked it the other day on the net as well...unfortunately not proven in saltwater yet
     
  7. jacquesb

    jacquesb Retired Moderator

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    HHHmmm - ok - let's wait Frans until it is PROVEN in marines!
     
  8. Manic

    Manic Thread Starter Moderator

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    It says on the Hanna website that it has now been tested in salt water and it works, even in my first post it says it...
     
  9. FransSny

    FransSny

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    Sorry Manic , wasnt questioning your post...and yes I have read the info on their site as well (also apparently UFO's do exist ;)) What I am saying is I will believe a fellow reefers opinion before spending bucks on "new" gadgets on a large company's marketing campiagn
     
  10. Manic

    Manic Thread Starter Moderator

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    I agree with you FransSny. If I were to organise this phosphate meter, what test kit would you recommend comparing it to? What is the best phosphate test kit?
     
  11. FransSny

    FransSny

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    Unfortunately Manic I think one would have to compare apples with apples, meaning if using a electronic test kit (Hanna make) compare to one made for SW ( i know Pete has one...cant remember the brand / make), compared to chemical test kits I would use seachem....Might be interesting to compare more than one though

    My 2C,
     
  12. SIMS

    SIMS

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    I think Hanna is a well respected company and is one of the leaders in Aquaculture testers. I for one would trust the product if it was certified by them to work in Saltwater - they have far too much to loose than miss represent their products. I have seen a review on one of the US sites from a reefer tat claims its great. I will try find th link.

    I am just waiting for the info on the Iodine test kit (not saltwter safe) before I order mine.
     
  13. MistaOrange

    MistaOrange

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    I like the gadget & it sounds pretty nifty I'll be willing to try one of them out. I I recon testing it against a chemical test kit would be a brilliant test & to see if the readings are accurate.
     
  14. lanzo

    lanzo Sponsor

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    Peter has the bigger phos digetaql meter...looks like a little machine....it measures 0.000 phos.

    And so far it has been very acurate

    i think he paid R1500-R2000 for us unit
     
  15. SIMS

    SIMS

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    so he will be able to testits accuracy for us.
     
  16. lanzo

    lanzo Sponsor

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    Yip...what do you want us to test?
     
  17. SIMS

    SIMS

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    if these cheapy hanna meters work :p
     
  18. lanzo

    lanzo Sponsor

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    lol

    Will ask peter to bring it threw tomorrow

    ill test with elos and then with hanna

    Results will be out tomorrow
     
  19. mariusmeyer

    mariusmeyer

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    Problem with these small units is that you have to buy the reagent every now and then. Also from overseas. They are around $9 for 25 but very few places ship here. You can get a 100 pack for around $75 including shipping.
     
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