Hanna alk and cal checkers...who has them?

[9supratt4]

I'm debating getting the Hanna Alkalinity and Calcium checkers through the group buy, but I've heard mixed reviews...especially on the calcium checker. I have the Phosphate checker and it works great. But what does everyone think about there 2?

 

[radiata]

I think the jury is still out on the Alk Checker: http://www.manhattanreefs.com/forum/chemistry/103282-alk-readings.html

 

[mnat]

I have both and have tested them side by side with salifert. Alk is pretty dead on there is a margin of error of course. The calc test is much more finicky and if you do it wrong it gives a false high reading. It took us about three times to get the calc one in line.

 

[howze01]

We use Calc, Alk and Phos. Once you get used to them, they're great. It's also awesome to not have to compare colors.

 

[spotter]

I have the alk and ulr phosphorus checkers and they are awesome. Ive heard too many negative things about the ca checker to sway me away from salifert.

Steve