Beer brewing refractometer

Beer Brewing refractometer
HEDAO 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.

Specifications:
 

HEDAO Beer Brewing refractometer
Model	Measurement Range	Min. Div.	Accuracy	Marke
RSG-32ATC	Brix:0-32% Wort SG:1.000-1.130	Brix: 0.1% Wort SG: 0.001sg	Brix: 0.1% Wort SG: 0.001sg	ATC
RSG-20ATC	Brix:0-20% Wort SG:1.000-1.085	Brix: 0.2% Wort SG: 0.001sg	Brix: 0.2% Wort SG: 0.001sg	ATC