Complicated to use, but provides good accuracy By Miles on 2/13/2013
Miles would recommend this product to a friend
This test took some practicing to get right. There are several steps involved in this test involving 2 separate reagents, RO water, and the sample. Ensure that the RO water you use in the first step is indeed at 0 TDS or you can very easily end up with an out of range reading (over 600). I was never good a titration in chemistry class, so this test while complicated gets rid of the frustration factor that comes with titration.
better than the alternatives, not as good as other hanna checkers By Gary on 2/3/2013
Gary would recommend this product to a friend
You must have di water available, there are a lot of steps. Still better than the alternatives though.
I like Hanna Checkers, but the accuracy on this one doesn't seem up to par. By Chad on 12/15/2012
Chad wouldn't recommend this product to a friend
I am a fan of Hanna Checkers, but my Calcium checker doesn't seem all that accurate. It is ~25-100 off from other test kits and I follow the directions meticulously.
Workd great for me By Dawn on 11/30/2012
Dawn would recommend this product to a friend
I think it is a great tester!!! Mr saltwater tank recomends them tooo!!!!
Very handy By Aaron on 11/18/2012
Aaron would recommend this product to a friend
I was hesitant about getting this tester as I have read some questionable reviews, but using it for almost six months now I love it. It is consistent, as long as it is used correctly with DI water. It is nice to read a number rather than judge a color.
seems to work By brad on 11/6/2012
brad would recommend this product to a friend
i am happy with this checker went step by step and tested my water and showed 533ppm
Super easy By Rob on 10/3/2012
Rob would recommend this product to a friend
Out of all the test I like this because u don't have to count drop by drop, super easy
Accurate if use good water By Edward on 9/28/2012
Edward would recommend this product to a friend
So I knocked off a star because this should come with its own DI water (or BRS should sell the Hanna water). If you use the lab grade water, this thing is very accurate and easy to use. I can't say it is any better than Salifert, but having the digital readout is a plus. The one other thing I wish it came with was a little cloth to wipe the glass before putting it in the checker. I have one to clean glasses that I use and I think it would be easy to include that since the clarity makes a difference (same as all other Hanna Checkers).
Worked for me By MATTHEW on 9/24/2012
MATTHEW would recommend this product to a friend
I found that I was getting accurate results if the directions were followed precisely. Not as easy to use as the alk tester.
Test Results way too high By Bob on 9/11/2012
Bob wouldn't recommend this product to a friend
I've used this Ca Checker for several weeks now and can only conclude that it consistently measures the Ca concentration at least 100 ppm too high. I was really hopeful for this instrument but very disappointed. Going back to my Salifert kit that I can believe and trust.
Works for me By Christopher on 9/1/2012
Christopher would recommend this product to a friend
I just got this the other night and although I will agree it is a bit hard to measure out some of the steps, it does work and the reading was up to par with my other test kit. Only time will tell.
Highly recommend. By BRIAN on 8/30/2012
BRIAN would recommend this product to a friend
The Hanna calcium checker has worked great for me. I always get consistent results. It's simple to use with just a few steps to follow. No more trying to guess colors. Just make sure you have some fresh RO water on hand to use with the test.