digital salinity refractometer

[jelly]

what one is better the Milwaukee or the hanna? are they worth the price you pay for it?

 

[stunreefer Verified Sponsor]

We had both the Milwaukee and Hanna at a local aquaculture facility I work with and both were consistently off compared to a refractometer calibrated with 35PPT. I recommend sticking with a good refractometer with a proper scale like this one.

 

[jelly]

how much have they been off by? I use a refractometer.

 

[stunreefer Verified Sponsor]

how much have they been off by? I use a refractometer.

Specific gravity was off by .002 - .003 on both units, consistently.