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Home » Saltwater Aquarium Supplies  » Testing Equipment  » Monitors & Controllers  » Single Item Monitors & Controllers  »  Hanna Instruments Checker Iron Colorimeter
Hanna Instruments Checker Iron Colorimeter

Hanna Instruments Checker Iron Colorimeter

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Item #:
HN1185
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Hanna Instruments Checker Iron Colorimeter Information


Product Manuals & Documentation

The HANNA HI 721 Checker HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 721 Checker HC is accurate and affordable with immediate results.

The new HI 721 Checker HC portable handheld colorimeter features a resolution of 0.01 ppm (500 points) and ±0.04 ppm ±2% of reading accuracy. The HI 721 Checker HC uses an adaptation of Standard Method 315 B.

The contoured style of this Checker HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI 721 Checker HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 721 Checker HC, press the button and read the results. It’s that easy.
  • Ideal for Aquaculture and Aquarium testing!
  • Easier to use and more accurate than chemical test kits!
  • Large, easy to read digits.
  • Auto shut off.
  • Operated by a single AAA battery
  • Use for quick and accurate on the spot analysis.
  • Single button operation: zero and measure.
HI 721 Checker HC is supplied with sample cuvettes with caps (2), powder reagents for iron (6), battery and instructions.

Specifications:
  • Range: 0.00 to 5.00 ppm ppm
  • Resolution: 0.01 ppm
  • Accuracy: +/- 0.04ppm +/- 2% of Reading
  • Battery Type: 1 - 1.5V AAA





Manufacturer Info

Hanna Instruments USA Aquarium Supplies
Hanna Instruments is a leading manufacturer of analytical aquarium instrumentation. They were founded in 1978 and are headquartered in Woonsocket, Rhode Island. When Hanna introduced pH Electronic Paper in 1986 it literally revolutionized the world of testing by allowing millions of people in various industries to test for pH in a simple, accurate and affordable way. Hanna employees are constantly challenging themselves to improve on existing technology and to invent new testing techniques with the common goal to simplify analytical testing. This applies not only to instrumentation, but also to sensors development, reagents and chemicals. Hanna also believes in controlling the quality of their products from inception to delivery so they manufacture everything themselves, from meters and electrodes to chemical reagents and buffer solutions.

Hanna Instruments Checker Iron Colorimeter Reviews



Average Rating
(88 reviews)
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Hanna calcium checker

by
Reviewers Rating Excellent!


Posted: 11/24/2014 from BEAUFORT, SC UNITED STATES
5.0 5
Experience Level: Expert


Comments: Works great right in line with my Sea Chem test kit.


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Still undecided

by
Reviewers Rating Average


Posted: 11/5/2014 from SHAWNEE, KS UNITED STATES
3.0 5
Experience Level: Intermediate


Comments: This seems like a nice piece of equipment and is not hard to use, just takes a little bit of time to prepare and use. However, I am not convinced of the accuracy as I get very different readings each time I use it, even back to back readings differ by over 5% which seems high for a digital reader.


1 of 1 People found this review helpful, did you? Yes No




Phospate Test Instrument

by
Reviewers Rating Excellent!


Posted: 9/15/2014 from HOUSTON, TX UNITED STATES
4.5 5
Experience Level: Intermediate


Comments: The Hanna Phosphate Tester is a quality product. A must for all reef aquarium owners.


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Love Hanna products

by
Reviewers Rating Excellent!


Posted: 9/12/2014 from San Diego, CA UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: Very happy with the Hanna Checker. I had to much trouble with color test. I will only buy Hanna checkers from now on. Too bad they dont make a Mg checker.


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Eliminates guesswork

by
Reviewers Rating Great


Posted: 9/8/2014 from Churchville, NY UNITED STATES
4.0 5
Experience Level: Expert


Comments: This is especially great if you have multiple people doing testing of your system as everyone seems to read colors or color changes slightly different. The only concern I have is that, doing side-by-side tests, the reading I get on the Hanna checker is considerably different (lower) than that of the Salifert test kit we have been using. At this point, I can't say which is more accurate but it disturbed me that there is such a difference.


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Hanna meter

by
Reviewers Rating Excellent!


Posted: 6/9/2014 from BILOXI, MS UNITED STATES
5.0 5
Experience Level: Expert


Comments: Package arrived on time and was packed well. The Hanna meters are Much easier than the red sea test kit and I would recommend this kit for someone has any issue with determining the color variations. Very accurate and makes the hobby much more enjoyable.


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HANNA HI 711 Checker HC

by
Reviewers Rating Excellent!


Posted: 5/24/2014 from WHEAT RIDGE, CO UNITED STATES
4.5 5
Experience Level: Beginner


Comments: We use this unit in the lab. The unit works as advertised as quick test for orthophosphate when we don't have time for ICP


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very pleased

by
Reviewers Rating Excellent!


Posted: 2/6/2014 from COVENTRY, RI UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: great product for the money.highly recommend.


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Hanna checker alkalinity

by
Reviewers Rating Excellent!


Posted: 1/31/2014 from MEMPHIS, TN UNITED STATES
4.5 5
Experience Level: Beginner


Comments: i can't really say its accurate cause i don't have anything to base it on. but i would say it is simple to use and no more figuring out the color. although i don't like that ppm is used as supposed to dKH but i guess they have a reason for that. i can always convert it.


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Love it!

by
Reviewers Rating Excellent!


Posted: 1/18/2014 from LAKEWOOD, CA UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: My wife has a complete set of test kits that use little charts to identify a general range of measurement. They are ok, and get the job done, but I absolutely prefer the precision and accuracy of the Hanna products to the test kits that test a range. It's like comparing the difference between using a hand saw and a precision table saw. I have the Hanna test kit for alkalinity, phosphate and calcium. I only wish that the nitrate checker were more affordable.


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