Api Vs Hanna

[mrmadlones]

Dont know what to think i've recently bought a hanna calcium hanna checker . I tested with the hanna twice and its at 450 the first and 475 the second . And i went back to API and it came out 400 . What would you's guys go buy ? API or HANNA ?

 

[ColaAddict]

I use both. Getting pretty similar results. API is cheaper, so I usually use that for most testing and if anything is off, then I double check with hanna. As long as you have good color reading eyes youre okay with API. And make sure you don't let API solutions get old or they become inacurate.