Great Tester By John on 9/30/2013
John would recommend this product to a friend
I love the ease of this tester ! It should all be this easy ! My wife loves it also, no more color charts ! I will in time only have these testers!
Great Product By Dylan on 9/24/2013
Dylan would recommend this product to a friend
Better than tritation test, only test kit I will use to check my Alkalinity
Makes testing easy. By jonathan on 8/11/2013
jonathan would recommend this product to a friend
The hanna checker is awesome. In a few simple steps, you know exactly what your alkalinity is.
Alk Check By DEH on 8/11/2013
DEH would recommend this product to a friend
Reliable, spot on numbers and easy to use. Better than tritation test.
very fast and high precision By Joe on 7/20/2013
Joe would recommend this product to a friend
This Hanna checker allows you to measure alkalinity very quickly and easily. It can be made even easier/quicker if you have a 1 mL pipettor. The measurements are very reproducible (high precision), but accuracy is harder to determine. For example, I made up some Red Sea Pro salt mix at 1.025 SG and measured alk with Hanna checker and the Red Sea Pro Alk kit. The results from two measurements were:
Hanna: 4.50 and 4.52 meq/L
Red Sea: 4.15 and 4.15 meq/L
These are significant differences, but the Hanna Check is closer to the expected value of ~4.4-4.53 meq/L. Of course, there is no guessing the end titration point with the Checker either. I've retired the Red Sea kit.
Very Accurate Tester By Kash on 7/15/2013
Kash would recommend this product to a friend
I used to use the Salifert Alkalinity test & found it hard to read the color change accurately but ever since i switched to the hanna alkalinity tester it has become very easy to precisely determine the value. The test does take around the same time to complete as the Salifert kit but there is no comparison with the Hanna digital readout. Great Product!
Easy and accurate By Thereeferman on 6/18/2013
Thereeferman would recommend this product to a friend
No more worrying about test results. I am now confidant or my tank's alk levels. I like this meter even better than the phosphate checker, which I also highly recommend.
Accurate, easy to use By Brandon on 6/1/2013
Brandon would recommend this product to a friend
Digital is the way to go. One reagent to add and you get a very accurate result. Tested twice in a row to see if the number would change even by 1ppm but it was identical. Wish you could change it to dkh vs ppm. Makes me do one more conversion.
GREAT PRODUCT. By TQN on 5/27/2013
TQN would recommend this product to a friend
Easy to use and reliable,accurate...
easy and accurate By hunt flint on 4/24/2013
hunt flint would recommend this product to a friend
much easier than color charts.digital readout gives more reliable results for aquarium log,makes keeping records more feel more useful.
Very Simple By Larry on 4/5/2013
Larry would recommend this product to a friend
This is one of the easiest checker I have ever used.
No More Confusing Colors By Thomas on 3/18/2013
Thomas would recommend this product to a friend
I love this thing. I have been using the Hanna Alk checker for five months now and I still love it. My old Alk test was hard to delineate between the colors. With the digital read out there are no more questions of the results. The process is easy and fast. It is well worth the investment.
Great Product By Mark on 3/9/2013
Mark would recommend this product to a friend
It does not get any easier to check alkalinity. No more guessing what the color is. I would recommend to any reefer.
Easy to Use and Accurate By Miles on 2/13/2013
Miles would recommend this product to a friend
This tester is super easy to use and results are fast and accurate. I have always had a hard time trying to compare colors on other test kits, the Hanna Checkers take all of the guesswork out of it and give you an actual number.
hands down the best alk tester on market By BK on 2/6/2013
BK would recommend this product to a friend
Love this test kit for its simplicity and digital readout. You must do a simple calculation to get DKH reading (multiply X 0.056) and then you are set. Used red sea alk before but always had some gray areas with the titration.
best alk tester By Gary on 2/3/2013
Gary would recommend this product to a friend
Fast, accurate, repeatable, can't do any better.
Easy to use and reliable By Jared on 1/27/2013
Jared would recommend this product to a friend
I have both the Hanna Alkalinity and Phosphate checkers. Both are incredibly easy to use and the results are very accurate. I would recommend them to anyone looking for better test results. The initial investment for the checker is well worth it as the refill kits are cheaper than buying test kits repeatedly.
Great Product! By Bobby on 1/20/2013
Bobby would recommend this product to a friend
It works just like its suppose to. It's very easy to use and is all organized in a waterproof case. Hope to see more quality products like this one for the aquarium hobby.
LOVE LOVE LOVE. Accurate By Kyle on 1/2/2013
Kyle would recommend this product to a friend
Best tester ive owned. accurate, easy and not to expensive. Reagents last a good while too. awesome product. Phosphate one is great also
Almost perfect By Andy on 11/28/2012
Andy would recommend this product to a friend
This is almost perfect, except for the fact that the actual results need adjusting (see Randy's AA article). Super easy to use and fast. No guessing color changes. Once you have your adjustment factor dialed in, results are very consistent.
Easy to use with consistent readings, but... By jlemoine2 on 10/24/2012
jlemoine2 would recommend this product to a friend
I've used the Hanna Alk checker for about year now, I'm on my 4th bottle of reagent, so I love using this test kit. The instructions are clear and testing water samples is a simple process. Doing tests one after the other shows consistent results, making almost dummy proof.
Advanced Aquarist magazine did a review of this checker against an EPA approved testing device. They found the Hanna checker to give results that were too high.. but at least the high reading was consistently higher at various concentrations of Alkalinity.
After learning this kit measured high, I compared it to a Salifert Alk test kit. The Salifert kit confirmed the articles conclusion. My reading was higher on the Hanna meter. In my case, I was a little bit low on my Alk and needed to raise it a bit.
After a couple of months testing with both the Hanna meter and Salifert kit, I noticed the Hanna meter reads a consistent 0.7 to 0.9 dKH higher than the Salifert kit. If you are riding on the low end of the Alk scale, that could be significant.
Now that I know there the Hanna kit reads high, I no longer use the Salifert kit, as I'm looking for consistency in the Alk kit, and the Hanna meter more than capable of detecting the rise and fall in levels in order to adjust my 2-part dosing.
I recommend the Hanna kit over the Salifert kit simply because it's easy to use and consistent. I hate the drip-and-swirl and watch for color changes that come with other kits... but the other kits make sense for "sanity checks".
Super easy By Rob on 10/3/2012
Rob would recommend this product to a friend
Easy to use and digital readout, all u have to do is use the BRS calculator.. Great tools
Simple and Easy. By Jason on 9/30/2012
Jason would recommend this product to a friend
Easy to use, saves time and gives a good accurate reading.
Great and Easy By Ray on 9/27/2012
Ray would recommend this product to a friend
This is an awesome product, Very easy to use and store in case. Seems to be accurate with other tests. Would recommend to friends
Very Satisfied By MATTHEW on 9/24/2012
MATTHEW would recommend this product to a friend
Ease of use, accuracy make the steep price worth it.
Good Checker By John on 9/21/2012
John would recommend this product to a friend
This particular checkers is a lot faster than most, and the digital read takes out the guess work. I think the print on the instruction manuel should slighly larger for us visually impared reefers, but does not take much to memorize the steps.
Great product By CoRRoD on 9/19/2012
CoRRoD would recommend this product to a friend
Come on, it's digital, what more can you ask for.
Hanna for life. By BRIAN on 8/30/2012
BRIAN would recommend this product to a friend
I own all three Hanna checkers and I must say that they're my saving grace. Being colorblind made standard color matching tests very difficult on me and the wife. The KH checker is great and constantly provides me with consistent results. There's only about three steps to follow with this test. I highly recommend this and all other Hanba checkers.
Takes the hassle out of testing By Dave on 8/26/2012
Dave would recommend this product to a friend
I test three things on a regular basis, Kh, calcium & magnesium. Since I order the Hanna Alkalinity test kit it cuts my testing time in half and what's great is that it gives you a digital readout instead of matching colors in a vial. Plan on ordering the calcium and phosphate testers as soon as I catch up from all the other products I order from BRS. The only thing I wish the Hanna checker has was more reagent in the kit
Thanks again for carring all the good stuff for my reefing supplies.
E ya soon!
Spectacular By Robert on 8/23/2012
Robert would recommend this product to a friend
This is one of the best pieces of equipment I have, and the one with whose results I am most confident.
The procedure is utterly foolproof--fill vial, press button, add reagent, press button, take reading.
An absolutely essential item. Buy this before buying an aquarium ;-)
Love the digital readout By Jeremy on 8/14/2012
Jeremy would recommend this product to a friend
So much easier to use than other test kits, and with the digital readout there is no guessing.
Love it By wallace on 8/11/2012
wallace would recommend this product to a friend
Accurate and fairly simple to use.
Awesome By Nathan on 8/3/2012
Nathan would recommend this product to a friend
This thing is awesome. It's fast, easy to use and produces accurate and precise results each and every time. Fill the vial with water, press the button, add 1ml of reagent, mix, put back in the checker and press the button. Wait about 15 seconds and viola'. That's all there is to it.
I just wish they would include a chart to convert ppm to dKH, but you can look that up online in a few different places.
VERY easy to use - VERY accurate results By Tony on 7/24/2012
Tony would recommend this product to a friend
Summary says it all
Good tester By Jack on 7/20/2012
Jack would recommend this product to a friend
This tester works as advertised and for the money is not a bad investment.
Love it By Sally Boy on 7/13/2012
Sally Boy would recommend this product to a friend
Great Product By Derrick on 7/7/2012
Derrick would recommend this product to a friend
These Hanna checkers are really great. The only thing is they are $50 a pop and only give you about 25 tests. For alkalinity I think we test Alkalinity the most and they should provide more tests. Overall the product is EXTREMELY simple to use.
Also BRS needs to supply the latest instructions for the liquid reagent instead of the powder that does not come with it any longer.
Excelent!!!! By Benjamin on 6/18/2012
Benjamin would recommend this product to a friend
I find this product very accurate and very efficent. The results turns to be as exact as they can be. When I test and retest the values are constant.
Easy to Use By Benny on 6/13/2012
Benny would recommend this product to a friend
Great product. Easy to use. Nothing like a digital read out. Quality device with fast accurate result time and time again.
Very Easy By Mark on 4/25/2012
Mark would recommend this product to a friend
Very easy, fast, and accurate. It cost a little more but I feel more confident in the results.
Buy these and throw out the other junk By thomas on 4/22/2012
thomas would recommend this product to a friend
There is really not much more to say than buy these and throw out the other junk. These are for all purpose lab grade testers and are simple fast and accurate. take the hate out of testing and just use these
works like a charm By Nikunj Patel on 4/9/2012
Nikunj Patel would recommend this product to a friend
Work, easy instruction.
Thumbs Up By Earl on 4/8/2012
Earl would recommend this product to a friend
I bought the checker about a month ago and love it. The ease of use and precision of readings won me over. Only problem I have is the reagents refills are a little pricy.
awsome By jordan on 3/17/2012
jordan would recommend this product to a friend
so much easier than trying to read a color i give it a 10
nice quick and acurate By mygolfisslow on 3/14/2012
mygolfisslow would recommend this product to a friend
i recently won this unit in a raffle. i think this is one of the simplest things to use. i wish it read in dkh and not ppm but the math is not hard.
great product By Scott on 3/5/2012
Scott would recommend this product to a friend
So much easier with digital readout.
A Must Have By Roy on 2/18/2012
Roy would recommend this product to a friend
The Hanna Alkalinity Colorimeter is a must have item for any serious reefer. It is easy, fast, accurate and best of all, no more titration testing.
The best By Adam on 2/9/2012
Adam would recommend this product to a friend
The best Alk test kit. Easy to use, price is high but worth it, you will never go back