which refractometer of this ones?

[Geral]

http://www.ebay.com/itm/Salinity-Refractometer-Aquarium-Seawater-Dual-Scale-1-0-to-1-070-S-G-/321034134549?pt=LH_DefaultDomain_0&hash=item4abf202415

http://www.ebay.com/itm/Deltec-D-D-ATC-Seawater-RefractoMeter-Measure-Salinity-Saltwater-Reef-Aquarium-/121069324919?pt=LH_DefaultDomain_0&hash=item1c304b4a77

thanks

[mgarrido]

which refractometer of this ones?

Any of those, just get a pinpoint calibration fluid.
I have a vertex and I'm more than happy

http://www.amazon.com/gp/aw/d/B005ES3RSU

[Geral]

Thanks Miguel

[mistahoo]

Re: which refractometer of this ones?

I got one for $23 shipped. Works great.

Sent from my spaceship using Tapatalk 2.

[raleigh19]

I have exactly the one on the first link you've posted. Works great with me and I calibrated my refractometer once a month to ensure everything is on point. I really recommend that you buy the calibration fluid as well.