Dual Scale 0-32% Brix and 1.000-1.130sg Wort Refractometer Rsg-100atc Beer Home Brew This Refractometer Is Specifically Created For Brewing Of BEER Dual Scale: Brix Scale and Specific Gravity Scale Brix Scale:0~ 32% Brix Wort Specific Gravity: 1.000 ~ 1.130 SG Automatic Temperature Compensation (ATC): 10C~30C (50F~86F)