love all hanner checkers since I have problems with colors By craig on 6/20/2016
craig would recommend this product to a friend
I love all the Hanna checkers, I wish the made one for magnesium though. As the the RO/DI unit I have not set up yet. Thank you, Craig Berthelot
HI758-25 calcium reagents By Chuck on 1/27/2016
Chuck would recommend this product to a friend
I always have used this product for my Hanna Checker. I have not had any problem with them.
The best calcium assay we've found By Fishers Coral Reef Farm on 11/25/2015
Fishers Coral Reef Farm would recommend this product to a friend
We've been using the Hanna Checker for calcium for over 18 months. The method is simple and easy to follow. When we run replicates, we find that we get repeatable and reproducible results that are more discernible compared to other methods available in the hobby.
Accurate & easy to use By kiel on 11/25/2015
kiel would recommend this product to a friend
I've found if something is easy to use I use it more. Hanna checkers are simple to use and accurate. Since using Hanna checkers I test more giving me better results.
Easy and accurate By MiamiMike on 8/17/2015
MiamiMike would recommend this product to a friend
I love my Hanna Checker
Very Accurate By George on 8/12/2015
George would recommend this product to a friend
Easy to use
A Must Have By Charles on 2/28/2015
Charles would recommend this product to a friend
These save time and really are a must have, accuracy is right on point!
Extremely Easy And Accurate By Ceasar on 2/4/2015
Ceasar would recommend this product to a friend
Everyone can agree that testing can be a pita, but with hanna it is a breeze. Just collect some water from your aquarium and add some reagent, and place into the tester. Eliminates the headache of wondering if you matched it to the right color on the chart or not.
love it By emak on 1/1/2015
emak would recommend this product to a friend
Absolutely love these, I dont know what took me so long to invest in these.
Good product horrible containers. By Samsffr on 12/26/2014
Samsffr would recommend this product to a friend
I love my checkers, however the regents are stored in containers that are in a word "cheap". I have not been able to put the lids on tight enough to not have some leakage. This makes the whole process a great big mess!