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The dKH checker by Hanna is one if the easiest to use and just as accurate as all current hobby grade test kits for dKH currently available. Feel free to let us know if you have any further questions!
This checker includes 25 tests. If you have any other questions, let us know!
The tip should be attached to the syringe prior to drawing the reagent fluid. You will want to draw the plunger to the 1mL mark, and the actual fluid will not actually be drawn into the syringe, but will just be drawn into the tip. This ensures more consistent dosing, and avoids fluid fouling the syringe portion.
Hope this helps!
While there are those that do not use the tip for drawing reagent, the manufacturer does specifically recommend using the tip for the best consistency and accuracy, and we recommend following their directions.
Have a great day!
This checker will use the same reagent as the HI755-26. Feel free to let us know if you have any further questions!
Easier to use and more accurate than chemical test kits
Chemical and titration test kits have limited accuracy and very hard to repeat that usually will rely on the human eye and lighting to determine the reading. Hanna's HI772 Alkalinity Checker is much more reliable with their single light source with a fixed wavelength that will give the electronic checker the ability to make repeatable measurements time after time. Similar measurement devices are used by labs and large scale testing facilities for their dependable and precise measurements.
Dedicated to a single parameter
Designed to work with HANNA's liquid reagents. Uses 10 mL glass cuvettes.
Small Size, Big Convenience
Weighing a mere 65 g (2.3 oz.), the Checker®HC easily fits into the palm of your hand or pocket.Use for quick and accurate on the spot analysis. Single button operation: Zero and Measure Operated by a single AAA battery.
- Range: 0.0 to 20.0 dKH
- Resolution: 0.1 dKH
- Precision: ±0.3 dKH ±5% of reading
- Light Source: LED @ 610 nm
- Light Detector: Silicon photocell
- Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
- Battery Type: (1) 1.5V AAA
- Auto-off: After 10 minutes of non-use and after read
- Dimensions: 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5")
- Weight: 64 g (2.25 oz.)
- Method: Colorimetric method
- HI772 Checker
- 2 sample cuvettes with caps
- 1 bottle of alkalinity reagent hi755-26
- 1 ml syringe and tip
- quick start guide.
Very accurate By Nicholas on 7/17/2017Nicholas would recommend this product to a friendWorth the money, a lot of other test kits are hard to read and take 3 times as long to get the result.
Does the job By Sponge bob on 5/5/2017Sponge bob would recommend this product to a friendWhen I purchased the unit it would not turn on , changed battery and still would not operate, called BRS and they sent a return label in 5 minuets, I got ready to ship and it was working.
So I kept it. Definitely a cost effective precision test unit at 50 bucks so don't expect lab grade hardware at hobby prices.
Great! By Brandon on 4/15/2017Brandon would recommend this product to a friendQuick and easy way to measure your alkalinity.
Good Tester By Gary P on 3/27/2017Gary P would recommend this product to a friendEasy to use and quick results.
Great tester By NHLIVES on 3/20/2017NHLIVES would recommend this product to a friendI like the idea of not having to figure out where the top of the titration syringe is and where the endpoint is. At least with the reagent syringe there is a definite "top" marker and the result is at least consistent. I'm going to give the CA tester a try even though it isn't as highly rated..
Great product By Andrew on 3/4/2017Andrew would recommend this product to a friendMeasures alkalinity with ease and love the instant display of what your DKH really is. I would recommend this reader to all reefers because it is easy to use and displays instant results.
Makes Checking Alkalinity a joy By Rick on 2/23/2017Rick would recommend this product to a friendIs very easy to use compared to a test kit that is changing color as an indicator of alkalinity and I found myself questioning if it was done changing or I should add another drop of reagent.
Easy and Usefull By EDazzle on 2/23/2017EDazzle would recommend this product to a friendNice to get an actual number rather than guessing at a range based on my judgement of color. I prefer and am always at the lower end of acceptable DKH, right around 8.0. The digital readout allows me to test then dose small amounts of needed chemicals before testing again. I am able to see quickly how much the dosing impacts a change in the readings. If I drop to 7.8 or 7.9 I up my dosing until I am at 8.0 or 8.1 again. If I jump a little higher I turn my dosing down until I'm back where I want to be.
I use this method and it works great with the other Hanna Checkers....
Easy to use but didn't last! By Pierre on 2/11/2017Pierre would recommend this product to a friendFirst, it is really easy and fast to use, seems accurate enough for the average Joe. I had mine for 8 months and it stopped working. (Error L.HI)
I contacted Hannah support by email and got a reply within a few hours (Great!) Unfortunately, the warranty is 6 months only and because of the price range, there's no repair or return possible.
Overall, great little tester, but it might not last!
Some piece of advice:
Store in a dry area, make sure no water ever touch it. Be sure you wipe any excess of water from the sample tube before insertion. Wipe again...and wipe...It will help for accuracy and longevity!
Above the rest By Mikesreef on 1/23/2017Mikesreef would recommend this product to a friendFast and accurate is all I have to say. Worth the extra money.
Great Product By Greg on 1/14/2017Greg would recommend this product to a friendLove the simplicity
Colorblind Perfect! By Nick on 1/10/2017Nick would recommend this product to a friendSo being shade blind it is hard for me to determine the proper levels in my tank. I usually just guess about and or around. But just ordered this Hanna Alk tester and right on point. Can't wait to get the other testers. Cost little bit more but well worth it because i'm not guessing anymore when checking my levels.!