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

Hanna Instruments Checker Marine Alkalinity Colorimeter

Average Rating 4.5 93
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Hanna Instruments Checker Marine Alkalinity Colorimeter Information


Product Manuals & Documentation



The HANNA Alkalinity Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA Alkalinity Checker is accurate and affordable.

The HANNA Alkalinity Checker features an accuracy of ±5 ppm (mg/L) ±5% of reading and uses the colorimetric method.

The contoured style of this Alkalinity Checker 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 HANNA Alkalinity Checker is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HANNA Alkalinity Checker and press the button to read the results. It`s that easy.

Specifications:
  • Range: 0 to 250ppm (mg/L)
  • Resolution: 0.1 ppm (mg/L)
  • Accuracy: +/- 10% of Reading (0-75) and +/- 5% of reading (75-250)
  • Battery Type: 1 - 1.5V AAA
Includes
  • Alkalinity Checker
  • 2 Sample Cuvettes with Caps
  • Reagent Start Kit for 25 Tests
  • Battery
  • Instructions

The Hanna Alkalinity Checker measures in ppm. In order to convert to DKH: ppm / 50 x 2.8 = KH












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 Marine Alkalinity Colorimeter Reviews



Average Rating
(93 reviews)
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Take the guess work out.

by
Reviewers Rating Excellent!


Posted: 6/12/2015 from GOLDEN, CO UNITED STATES
5.0 5
Experience Level: Beginner


Comments: My girlfriend and I see colors different, making testing with standard kits very unreliable. With Hanna, we can now get the same result when testing.


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Po4

by
Reviewers Rating Excellent!


Posted: 5/3/2015 from CORONA, CA UNITED STATES
5.0 5
Experience Level: Expert


Comments: Very happy with this product . Very easy to use .


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Easy to use

by
Reviewers Rating Excellent!


Posted: 4/15/2015 from BISMARCK, ND UNITED STATES
5.0 5
Experience Level: Beginner


Comments: This is easy to use and makes checking your water more accurate. Great product


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great tester

by
Reviewers Rating Excellent!


Posted: 2/14/2015 from HUNTINGTON BEACH, CA UNITED ST
5.0 5
Experience Level: Intermediate


Comments: Simple and accurate.


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Works well

by
Reviewers Rating Great


Posted: 1/9/2015 from Lynnwood, WA UNITED STATES
3.5 5
Experience Level: Intermediate


Comments: It's a little clumsy, the reagent is not user friendly, it consumes too much time but, it works and seems to be fairly accurate.


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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.


2 of 3 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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