Refractometer - $31.50 - Delivered

It was delivered and works perfectly. It took 5 seconds to calibrate it and it matched my friends hydrometer exactly.

I got it on eBay from this place nis_sales


NEW! Salinity Refractometer 4 Aquarium Pond Hydrometer - eBay (item 220227818916 end time May-04-08 00:18:40 PDT)

I thought someone may be able to use one.

 

Forgive me if this is a silly question but I've never used a refractometer, considering buying one after hearing bad things about the swingarm I have now.

The scale on that says 20 degrees Celsius, but the text notes automatic temperature compensation. Can you say how this works? Do you have to refer to a conversion chart or something or ???

 

Actually, it is quite easy. The first thing I did (as per the instructions) was to calibrate it.

To do that I simply put about five drops of RO water on the "Lens", closed the "flapper" and looked into the eyepiece near a good light. I then turned a small adjustment screw until the blue and white met (creating a clear line) at Zero.

Then I did the same thing with my tank water. Put on a few drops, closed the flapper and looked through the eyepiece. The Blue met the white at 1.028 (this was just before a top off) so I added the RO.

I waited a little while and took another reading and it read 1.024

It is fast and easy.

 

This will help

 

looks good, i might have to get one, nice price too!

 

Don't know brand...but very good price.

Get calibrated before using/trusting. One of easiest ways is to take down to LFS and have them check out for you...

I stick mine in backback whenever going to Seattle Aquarium (couple of times a year - we have annual family pass of course) === and they are always happy to check out mine for me.

On sale at DFS also...but a bit more pricey.


No reef keeper should be without one of these.

 

Took all your advice and got a refractometer from Drs Foster & Smith paid alittle more 44.99 But you were right, it is the way to go !!