Brix Refractometer with ATC - Tiaoyeer Digital Handheld Refractometer for Beer Wine Fruit Sugar, Dual Scale-Specific Gravity 1.000-1.130 and Brix 0-32% (Black)

Updated after about 8 months , still functioning well and accurately.

╔ ■ Price Point / Value: 5/5 ╠ ■ Quality: 5/5 ╠ ■ Recommendation: 5/5 ╠ ☼ Overall: 5/5 ╠ ►Product Need: Beer/wine making ╠ ►Product Pros: Calibration, accurate, easy to use, case ╠ ►Considerations: ╠ ►My Review: This is a nice tool to assist with me making beer. It’s easy to read and easy to use. It is pretty big, but doesn’t use a lot of liquid to get a reading and doesn’t need any power to support it which means it is less prone to breaking. I would say it is accurate as far as I can tell and does everything I need from. It also comes in a nice case. Overall happy with my purchase.

I used this on my home brew beer brew day the day after I received it. Packed well with its own case for storage. Readings seems to be accurate out of the box as I tested it with tap water and it showed 0 Brix... Fine. The issue is in the pictures of the listing it shows Brix and Specific Gravity on the same scale. When it arrived it only shows Brix. I can use an online calculator but for efficiency I was disappointed that it wasn't right there in the view finder. Other than that I was able to record my readings as required.

It is advertised as a dual scale having both Brix and SG scales, however it only has Brix scale and then you need to convert to SG manually

For what it is, this is an excellent product for the price. It only uses a few drops of liquid, hold it directly under a light(I use my range hood) and it is very easy to read. It even has an adjustable eyepiece focus to make the scale crystal clear. HOWEVER, I bought this under the impression that I could measure OG and FG of my home brews. While it seems to measure OG within 1-2 SG points of my hydrometer, the FG will be WAY OFF(mine showed 15 SG points higher) of the actual SG measured with hydrometer. This is because refractometers are not calibrated for alcohol content, and the presence of alcohol will throw off the measurement. It doesn't mean this is a bad product, just that refractometers and not capable of measuring SG of liquid with alcohol in it. There are, however, calculators online that estimate the actual FG, given the refractometer readings at OG and FG. While I'm yet to confirm the accuracy of these online calculators, I will continue double-checking the FG with my hydrometer just to be sure. I have become confident enough to only use the refractometer to measure the OG.