RSG-100ATC Dual Scale Refractometer w/ATC

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From the product description, check product page for current description, price and availability:

Beer brewing refractometer. This hand-held optical refractometer measures the density of sugars in the solution and gives you an instant gravity readings at any point during the boil, or run off from the mash. You do not need to convert the reading from Brix to specific gravity or do an adjustments for temperature. Great for quick and frequent check on the gravity of your running or while sparging, and also for those who do not like to deal with the temperature compensation necessary with a hydrometer. Unlike a hydrometer, it only requires a very small amount sample, about 2-3 drops of sample only.
This refractometer is specifically created for brewing of BEER but it can also be great for:
Fruits, vegetables & grasses:
Monitor and control sugar concentrations in foods, beverages, crops and plants, checking the “ripeness”of fruit in the field and verifying product quality after harvesting and/or controlling concentrations during processing and packaging to ensure product quality
Wine or beer:
Use Brix readings to get wort sugars and help determine finished alcohol readings (, best use in conjunction with a hydrometer)
Metalworking fluids
Helps in maintenance of CNC coolants and water soluble drawing & stamping compounds and commonly used for controlling the concentration of various industrial fluids like cutting lubricants and flux rinsing compounds The need to consult temperature correction charts is eliminated with the built-in 10-30°C ATC. The unit also comes with a manual calibration knob that is secured with a lock nut and has a brighter display than the more narrow range refractometers. One of the popular instrument with many homebrewers!
Measuring Range:
0~ 32% Brix Scale
1.000 ~ 1.130 Wort Specific Gravity
Accuracy:±0.2% Brix ±0.001 Wort Specific Gravity
Automatic Temperature Compensation (ATC): 10°C~30°C (50°F~86°F)


 

For me, getting a refractometer was one of those upgrades that made a lot of difference.  With a refractometer you need a sample size of two drops.  I figured that this would pay for itself in beer savings alone.  I also had just broken my hydrometer and came to the realization that hydrometers are made of breakable glass that can break! 🙂

Refractometers can be used to measure gravity throughout the brewing process.  You can also estimate the alcohol content of your beer if you forget to take an OG with the use of a refractometer and a hydrometer.  Check out Sean Terrill’s excellent refractometer calculator.

Dual Scale 0-32% Brix and 1.000-1.130sg Wort Refractometer Rsg-100atc Beer Home Brew – note that multiple variations of this product may be available, as such a different version may appear at this link


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1 thought on “RSG-100ATC Dual Scale Refractometer w/ATC

  1. Jeffrey M. Adkins

    Just FYI – I have/had one of these. It was junk. Inconsistent readings, even just doing one or another. Over the course of a few days, it got worse, and read extremely high when compared to the hydrometer. Then I discovered that there was something rattling inside of it. So, I took the eyepiece off, and parts fell out…

    I’m sure it was a manufacturing problem. They’re from China. The company did issue a refund. There are several good reviews on Amazon for this, so I’m sure if you get a good one, it’s probably OK. My advice would be to check it thoroughly when you get it, just to make sure you got a good one…

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