Grand Index-brix Beer Wort Brewing Refractometer Rsgn-100atc with Built-in Calibration Knob Measuring Range: 0-32%Brix; SG: 1.000-1.120 Minimum Division: 0.2%Brix; 0.001sg Accessories included:1pc Pipette ***Operations manual***Mini-screw driver***Soft protective carrying case Great for:Fruits, vegetables & grasses;Wine or beer;Metalworking fluids: Guarantee: Offers 2 year warranty