Accuracy: Hand-held or Digital Refractometer??

[redmarble]

Upgrading... Would I be better off with a hand-held refractometer, like DD, Vee Gee, or Premium Aquatics than the Milwaukee/Hanna Digital Seawater Refractometer?

Aren't the hand-held ones more accurate?

The Milwaukee Digital Refractometer says that it's accurate to 0.002 (Milwaukee Link.)

Anybody knows the specs of the DD, since I can't find the accuracy of it? Is it the same as that of the Vee Gee's, ± 1.0 "°
± 0.001, Vee Gee Link.


Why would I want to buy the Milwaukee Digital Seawater Refractometer besides ease of use? Are hand-helds more prone to human error?

or

VS

 

[muffe]

Hydrometer IMHO. For the same reason a sundial is more accurate and reliable than a modern Rolex

 

[bertoni]

A hand-held refractometer calibrated with a calibrated saltwater solution should be fine. I preferred using a conductivity meter, but both are fine for our purposes. I would avoid the Milwaukee, since it's not very accurate, even if it manages to live up to its specs.

I haven't used the refractometers that you listed. Mine is an inexpensive model from an online vendor, and it seemed fine.