Grab this Refractometer & measure your pre-fermented Wort in seconds with just DROPS of wort! * Dual Scale Refractometer: 0-32% Brix & 1.000-1.120 Wort Specific Gravity * Scale Resolution: 0.2% Brix and 0.001 Wort Specific Gravity * Accuracy: +/-0.2% Brix and +/-0.001 Wort Specific Gravity * Comes with BLACK Finger Grips & Automatic Temperature Compensation from 10-30"C(50-86"F)