Best Price RHS-10ATC Salinity Refractometer 0-10%(0-100ppt) Seawater Brine Refractometer

The moment I opened this out of the box, the little fabric bag it came in was busted. The zipper was stuck and in an effort to get it unstuck, the zipper came off one side entirely, and I can never close the bag again.That being said, the refractometer itself is great. It does the job; I need to maintain a brackish tank of about 1.003 and using this is pretty easy. I can easily tell where I'm at in salinity and it's stupid easy to use. And, for the price, I'll take the ripped bag.

Ehhh it’s not the best but it beats a hydrometer. There’s a weird thing with the lenses in mine that make it look like it’s blurry or scratched but I can still read it. Seems pretty accurate so far.

nice.