- Portable colorimeter measures the alkalinity of saltwater aquariums
- Includes two cuvettes with caps, liquid reagent for alkalinity, and a syringe with tip for testing water samples
- LCD screen displays results with an accuracy of + or - 5 ppm + or - 5% of reading and resolution of 1 ppm
- Single-button operation to zero the display and begin a test for ease of use
- Compact size for storage and carrying ease
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Hanna Instruments HI 755 Checker HC Handheld Colorimeter, For Alkalinity (1 cuvette, 1 bottle of liquid reagent and 1 syringe - Included)
|Price:||$49.99 & FREE Shipping. Details|
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Specifications for this item
|Brand Name||Hanna Instruments|
|EAN||0701748849523 , 0798804897000|
|Number of Items||1|
|Part Number||HI 755|
|UPC||798804897000 , 701748849523|
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The Hanna Instruments HI 755 Checker HC Handheld Colorimeter measures the alkalinity of saltwater aquariums, has an LCD screen, and an accuracy of + or - 5 ppm + or - 5%. This portable colorimeter measures the alkalinity of saltwater aquariums. It includes two cuvettes with caps, liquid reagent for alkalinity, and a syringe with tip for testing water samples. The reagent is good for approximately 25 tests. The LCD screen displays test results with an accuracy of + or - 5 ppm + or - 5% of reading and resolution of 1 ppm. It has single-button operation to zero the display and begin a test for ease of use. The colorimeter's compact size provides ease of storage and carrying. The unit operates on a single AAA battery, and turns off automatically after 10 minutes of non-use to conserve battery life.
|Range||0 to 300 ppm (mg/L)|
|Resolution||1 ppm (mg/L)|
|Accuracy||+ or - 5 ppm (mg/L) + or - 5% (at 25 degrees C/77 degrees F)|
|Light source||LED @ 610 nm|
|Light detector||silicon photocell|
|Working environment||0 to 50 degrees C (32 to 122 degrees F); RH max 95% non-condensing|
|Weight||64 g/2.25 oz.|
|Dimensions||81.5 x 61 x 37.5 mm/3.2 x 2.4 x 1.5 inches (H x W x D)|
H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.
Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) standard 9001.
What's in the Box?
- Hanna Instruments HI 755 Checker HC handheld colorimeter
- (2) cuvettes with caps
- Liquid reagent for alkalinity
- Syringe with tip
- AAA battery
Top Customer Reviews
The White case in the picture is the old case, mine came in a much more durable Black case with double latches. It seems all there kits now use the same black case. The Alkalinity tester is so easy to use, and the results are very accurate when I compared them against a fresh batch mix of Red Sea Reef Salt Water. I also get really good repeatability with the measurements and so far I am very happy with this kit.
With the Hanna kits there are a few tricks to getting accurate results, I will be doing a you tube video on that for people to see, needless to say if you dip them in a Tank to fill the vials, after you get the level right and seal the vial, make sure to rinse the outside off and your hands with fresh water and then dry it with a paper cloth and give it a final polish with a reading glasses cleaning cloth. If you do this and use them properly you get consistent accurate results and the real beauty is that you don't have to look at anymore color charts and the test are so much easier to perform than the old school stuff. I can do 4 different tests in under 10 minutes and have good results that are repeatable and match what I expect after dosing.
Easy to use, you might only need the directions once or twice and there is no learning curve just be accurate as possible with the amounts you put in. Gives you an answer within seconds. I multiply the result by .056 to get my reef tank alkalinity.
Just a helpful hint, make sure to use a clean cloth to wipe the glass vile before you place in into the checker, the vile has to be sterile and clear on the outside or you will not get the results you are looking for.
We have an aquaculture business with thousands of dollars invested in coral, so we only trust what we know will work, and the Hanna items have proven to be a very valuable piece of equipment in our facility.
Here's a video to assist you.
Most Recent Customer Reviews
This is the first checker I have ever had that gave me reasonable values for Alk.
It's so simple and easy to use, and the quick-start guide (which is laminated so it doesn't... Read more
This checker is so easy to use i check the alkalinity daily and it takes less time than any other test kit and very consistent results.
I recently saw a post that said there was a recall on Hanna's alaklinity reagent. I used their checker as the only way to test alkalinity in my reef tank. Read morePublished 5 months ago by jtt4chem
The checkers are awesome. You run the test just like the others but no more guessing at the color.Published 5 months ago by Chas J.
This is a great tester. Its simple to use and read. I orginally used the redsea alk test but i couldnt tell when the color changed, so i misread the alk number all the time. Read morePublished 8 months ago by David