Material: Metal + Plastic Measurement Range: 0-80% Minimum Unit: 1% Accuracy: ±1% Reference Temperature: 20°C Accessories: 1 x Measuring Instrument, 1 x Pipette, 1 x Cleaning Cloth, 1 x Screwdriver Note: 1. Accurate measurement requires proper calibration. Please calibrate the refractometer before first use. 2. Keep the refractometer dry and clean to ensure accuracy and prolong instrument life. 3. Not recommended for use with wine or liquids containing high levels of sugar or other ingredients. 1. 【EASY AND QUICK MEASUREMENT】: Alcohol refractometer designed to measure the volume percentage of spirit alcohol, suitable for brandy, whiskey, vodka, and similar distilled spirits. 2. 【ACCURATE READINGS WITH ATC】: Features automatic temperature compensation (ATC) to ensure reliable and consistent results despite ambient temperature fluctuations. 3. 【VERSATILE USE】: Portable optical instrument ideal for bartenders, liquor retailers, and food production applications. 4. 【DURABLE CONSTRUCTION】: Constructed from non-staining, non-corrosive aluminum and plastic, lightweight, scratch-resistant, and durable. 5. 【NOTICE】: Not suitable for testing wine or liquids with high sugar content or complex ingredients. Note: Measurement data is obtained manually. Slight variations may occur due to environmental factors. Color may differ slightly due to screen settings. Product appearance may vary slightly from images.