📐 Accurate Measurement with General Tools REF113ATC Refractometer Compensation Review

I've been using it for over a year and I depend on it. It has been heavily used and the clear plastic hinge has broken. The warranty had expired, but the General Tools guy was able to find an extra part and shipped it to me. I would order another one from this seller and will probably come back at some point. I use it to check the mineral and sugar levels in my garden vegetables. I love high diamond plants that grow in mineralized soil. I still haven't figured out how to get this refractometer…

As a newbie to coral and fish life, I ordered this instrument to measure the correct salt mix in my aquarium. So far it's been a great tool. A mixture of salt and water was present. My water's specific gravity was the same as the test done at my local fish shop. This allowed me to keep my seawater mixture right where it should be. I haven't had to recalibrate it since it came out of the shipping stuff. It worked exactly as stated in the description. I would recommend this instrument to anyone…

I used this with 2 ciders and 2 beers along with my hydrometer and brewzor calculator for android. This is a free set of tools similar to those available from Beerssmith or Northern Brewer http://www.northernbrewer.com/refractometer-calculator/. You need such a calculator to properly use the refractometer. If you didn't know that once your wort begins to ferment, the presence of alcohol changes the way light travels through the prism, skewing your results, these calculators will help you with…