Simple shockproof design, easy to carry, with clear viewing, convenient and reliable. Widely used in various industries, measures Brix: 0-32% and specific gravity: 1.000-1.120. Provides accurate measurement and long-lasting durability, resistant to damage. Dual range refractometer for measuring Brix and specific gravity of wort or wine. Constructed from quality silicone and plastic materials for maximum durability. Includes: 1 x Beer Wort Refractometer, 1 x Scale Straw, 1 x Cleaning Cloth, 1 x Manual. Condition: 100% New. Item Type: Beer Wort Refractometer. Material: Silicone + Plastic. Measurement Range of Sugar (BRIX): 0-32%. Wort Specific Gravity: 1.000-1.120 SG. Accuracy: Brix: ±0.20%, Wort Specific Gravity: ±0.001 SG. Directions for use: Open the cover plate and wipe the detection prism carefully with a soft cloth. Apply a few drops of the solution to be measured onto the prism. Gently close the cover plate to avoid bubbles and ensure even distribution of the solution across the prism surface. Point the instrument toward a light source or bright area, view through the eyepiece, and adjust the handwheel to sharpen the blue and white dividing line. The scale reading at the boundary indicates the solution concentration. Features automatic temperature compensation.