specific gravity meter for beer wort quality control

The RHW-1.10A Handheld Alcohol Refractometer is specifically designed for beer quality control. It measures the wheat concentration in beer, with a measurement range of 1.000 to 1.100 SG, and an accuracy of ±0.002 SG.   This model is ideal for quality control during beer brewing. The main body of the instrument is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation(ATC). Models without ATC are also available for a lower cost.   Measurement Specifications Scale(s) Ranges Resolution Accuracy Bear wort 1.00 to 1.10SG 0.002SG ±0.002SG