Aqua Craft Salinity Calibration Fluid By Salty Dog on 6/1/2015
Salty Dog would recommend this product to a friend
Excellent product for the $$. Should have purchased months ago instead of having my refractometer checked periodically at the saltwater shop.
Accurate By Benjamin on 3/19/2015
Benjamin would recommend this product to a friend
Very accurate. Dropper tip on the bottle eliminates having to use a pipet. Enough in the bottle to last a very long time.
Excellent Calibration Fluid By Mr.JD on 3/15/2015
Mr.JD would recommend this product to a friend
Perfect solution for calibration of your Refractometer. Don't make the mistake I did buying the Pinpoint Salinity Calibration Fluid it is for salinity probes not Refractometer. Keep the fluid stored in a cool place you don't want any evaporated fluid.
Don't test without it By Jeff on 3/12/2015
Jeff would recommend this product to a friend
I use this solution weekly to keep my refractometer and probes calibrated. Peace of mind that my readings are true and I will not test without it. Good stuff!
Good Idea for Refractometer precision By Matt on 3/12/2015
Matt would recommend this product to a friend
My new refractometer was off 3 points using RO water to calibrate. Now I know it's on with this calibration solution.
Simple to use and should last for a very long time. By Scott on 3/4/2015
Scott would recommend this product to a friend
Simple to use and should last for a very long time.
Great item. By Michael on 2/9/2015
Michael would recommend this product to a friend
Works spot on.
Simply works By Jesus on 2/3/2015
Jesus would recommend this product to a friend
Easy to use, large quantity, and the drops come out at a very controllable rate. Tested this against multiple calibrated devices including the Milwaukee MA887. All read at 35, so it's pretty dang accurate.
Excellent Product, Excellent Accuracy By AsmoTiC on 1/26/2015
AsmoTiC would recommend this product to a friend
I actually ordered this on accident. I didn't realize the Refractometer was going to come with a bottle of the same stuff, so I ended up with two.
As it turns out, this worked out great. My sality was so far off from the Hydrometer I was using before, I thought something was wrong with the Calibration Fluid that came with the Refractometer. This bottle was a perfect match for the fluid that I calibrated my Refractometer with the first time and gave me piece of mind on the accuracy of both.
Best Price for a bottle that'll last forever By Ryan on 1/15/2015
Ryan would recommend this product to a friend
My refractometer came with enough to calibrate it once. This will last forever and I'll know my salinity is perfect.
Small investment saves your peace of mind By Martin on 12/15/2014
Martin would recommend this product to a friend
If you have a refractometer, don't hesitate in buying this. I have two and they both read 35 ppm as advertised. Don't use RO/DI...I tested and calibrated my refractometer with RO and found that at about 35 ppm my refractometer was reading out by 3 ppm. With this calibration fluid I know I'm reading my salinty accurately at the range it needs to be accurate.
BOTTLE SHOULD LAST YOU A LONG TIME By Mark on 11/18/2014
Mark would recommend this product to a friend
I like the fact that it has a build in dropper. My refractometer came with a small vial of calibration fluid but no dropper! I have to use my dropper for doing other water tests so always making sure it was completely clean of any old saltwater just added another step to my calibrations. Plus if you're using two drops or so to calibrate this should last you a long time. The bottle was much bigger than I was expecting.