Hanna for alk. Which is better?

[Ocean Lotion]

So am ordering a hanna checker for alk and found there are 2 to choose from. DKH or PPM. Is either more accurate or if I am used to measuring in dkh should that be the one to pick?

 

[PatW]

I am used to DKH, so I would order that.

I can imagine a thermometer available in a Fahrenheit or Celsius version. It is just two different scales. The temp measured is the same. I bet that both units are identical except for the scales they use to report the results.

 

[nautical_nathaniel]

Most folks on here, in my experience, expect Alk to be listed in dkh so that's the version I went with. However, ppm to dkh is a simple conversion and I have noticed that some alkalinity additives, such as Seachem Reef Fusion 2, have online calculators that use ppm in their calculations.

 

[Chac317]

I use the ppm version and this chart printed out by the tank. They’re probably the same accuracy though. I’m to the point where I think I’m ppm now instead of dKH lol

 

[madweazl]

If I were to purchase now, I'd grab the dKh but it wasnt available when I bought the Hanna. Like the above user, I keep a conversion chart on the computer and reference it. After a while, you dont even need to look at it. Reagents for both kits is the same so that is nice.