Hanna Instruments Checkers

[CollinsLL2]

Are they worth the price? Are they reliable and accurate compared to the Salifert kits? Do they ever need replaced?

 

[Flatlandreefer]

I think it depends on the parameter that you are testing. Ultra low phos is a popular one and one of the most accurate phos test kit. I have one and I don't use it very much, it has a 3 min time limit before it turns off and takes almost 3 min to complete all the steps...it can be very frustrating when it shuts off before you finish mixing reagent.

Calcium gets a lot of negative reviews for being unreliable and inaccurate. I am going to buy the alkalinity test because it is by far my most tested for param and it is supposed to be very easy to use.

 

[Michael Montgomery]

Curious as well...

 

[Homer Allman]

I agree with Flatlandreefer.
I have three of them The calcium one doesn't seem accurate, I stopped using it. It's for sale. The Alkalinity seems spot on and the phosphate works well once you master holding the button in on the final sample. You do need to work quick with the phosphate checker as flat lander said.

 

[CollinsLL2]

thanks for the replies. Cal and Alk were the ones I was thinking of getting but I guess I'll skip the Cal. Explains all the mixed reviews I'm reading also, I sorta figured if one was good or bad, all the others were also, good to know that some are better than others.

 

[Flatlandreefer]

thanks for the replies. Cal and Alk were the ones I was thinking of getting but I guess I'll skip the Cal. Explains all the mixed reviews I'm reading also, I sorta figured if one was good or bad, all the others were also, good to know that some are better than others.

I would go with a Salifert kit for calcium, pretty easy to use and they are accurate

 

[DarkSky]

I swear by the Alk and ULR phosphate ones, but the calcium one is not that good. I also use Salifert's kit for Ca.