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. EASY AND FAST MEASUREMENT Alcohol refractometer for testing alcohol volume percentage in brandy, whiskey, vodka, and similar spirits. ACCURATE READINGS WITH ATC Handheld alcohol refractometer features automatic temperature compensation (ATC), eliminating errors due to temperature fluctuations. The device automatically adjusts for ambient temperature changes, ensuring reliable and consistent results. ENDLESS USE Portable optical instrument ideal for barts, alcohol dealers, and food manufacturers. Scale range: 0–80% V/V (alcohol volume percent), division: 1% V/V. DURABLE CONSTRUCTION Made of non-staining, non-corrosive aluminum and plastic. Lightweight, scratch-resistant, and built for long-term use. NOTE: Not recommended for wine or liquids high in sugar and other additives.