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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 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.
Awesome By Cowboy Wayne on 9/19/2016Cowboy Wayne would recommend this product to a friendEliminates human inaccuracy.
Great! By Danny on 9/14/2016Danny would recommend this product to a friendI absolutely love this meter. It's worlds easier and more consistent than the red sea pro alk test I used that changed its endpoint color hue over the months with two different batches of reagent.
Love it! By Mark on 8/29/2016Mark would recommend this product to a friendThis makes my life much, much easier since I like to test often. Takes less than a minute and is accurate!
Great product By Ronzek on 7/20/2016Ronzek wouldn't recommend this product to a friendThe ease of use has me sold on this checker!
Fastest and easist to test alkalinity By Chris on 6/23/2016Chris would recommend this product to a friendThis is the absolute fastest alkalinity checker around. fill the vial with water, put it in the checker, press a button, pull out the vial, add a single reagent, give it a shake, put it back in and one more press and you have your reading. The fact that this new checker reads in dKH is awesome. I'm testing more frequently which is allowing me to dial in my 2-part dosing pumps much more accurately.
very disappointed By Jared on 6/23/2016Jared wouldn't recommend this product to a friendcame up with a different reading 5 times back to back and not just off by .1 but 1-3 and yes i changed the reagent every test
Excellent Alk Test By Ryan on 6/14/2016Ryan would recommend this product to a friendLove it. Easy to use, fast and accurate. I highly recommend. Can't say the same for the Calcium Hanna test kit of which I'm going to review next.
Worth it for frequent tests By Jonathan on 6/12/2016Jonathan would recommend this product to a friendRecently purchased this Hanna Alk checker. Due to the fact that I'm tuning my first calcium reactor and measuring alk daily, I wanted something with more consistent and reproducible results than titration. I previously used Red Sea Pro and Salifert titration kits, and while those are decent, and use good materials and reagents, my own shifting perspective on what color change to measure the reading at just simply made me feel like it was guess work at best. In this hobby stability is more important that some specific decimal point, so I like how consistent my readings have been with the Hanna checker, which saves me from my own shifting color perspective, if that makes sense. It's not really any faster or less messy than titration. Still have to clean the vial and the syringe tip, but the results are a lot more consistent from test to test.
I still need to pick up the reference solution to be able to verify its accuracy over time as I have read it can shift over the years.
it is a junk By Leon on 5/31/2016Leon wouldn't recommend this product to a friendmy unit is 4 points off from the Red Sea test kit
Awesome tool By Eric on 5/20/2016Eric would recommend this product to a friendVery easy to use and accurate. Have been able to fine tune my doser pump and corals looking better! Hopefully they can get thier other testers this easy to use!
Amazing By Alvin on 5/14/2016Alvin would recommend this product to a friendQuick and easy to use will not use another. It's a must have
Easy By Piper on 5/6/2016Piper would recommend this product to a friendLike others have said, it is quick and easy and consistent. Love the digital readout.
Includes 30 ml of reagent, each test uses 1 ml, so the initial supply is probably good for 28-29 tests, since it'll be difficult to precisely get that last 1 ml. Reagent expiration date was about 15 months from purchase date.
In the beginning, the device occasionally shutoff between the two measurements, but I found it was because I had not fully tightened the screw on the battery door. No problems since tightening it.
It comes with a 1ml syringe, but it really should also include a syringe for filling the 10ml vial.
The presence of the syringe slip tip confused me (noob) and the instructions do not mention it or why I would want to use it. If desired, attach the tip to the syringe, insert tip into reagent, and pull the syringe plunger to the 1.0 ml mark, which fills the tip with 1 ml of reagent. The reagent never touches the syringe, so the plunger stays clean and freely moving.