Product material: metal + plastic Measuring range: 0-80% Minimum unit: 1% Accuracy: 1% Reference temperature: 20°C Accessories: 1 x measuring device, 1 x pipette, 1 x cleaning cloth, 1 x screwdriver Note: 1. Accurate measurement depends on proper calibration. Please calibrate the refractometer before first use. 2. Keep the refractometer dry and clean to ensure accuracy and longevity. 3. Not recommended for wine or liquids high in sugar and other ingredients. 1. Easy and fast measurement: Alcohol refractometer for testing alcohol volume percentage in brandy, whiskey, vodka, and similar spirits. 2. Accurate readings with ATC: Handheld alcohol refractometer features automatic temperature compensation (ATC), minimizing the impact of temperature fluctuations for reliable and repeatable results. 3. Wide application: Portable optical instrument ideal for bartenders, alcohol dealers, and food manufacturers. Scale range: 0–80% V/V (alcohol by volume), with 1% V/V divisions. 4. Durable construction: Made from non-corrosive, non-reactive aluminum and plastic, lightweight, scratch-resistant, and built for long-term use. 5. Not suitable for wine or substances high in sugar or additional ingredients.