describeproduct descriptionMaterial: metal plasticMeasuring range: 0-80%. Minimum unit: 1%Accuracy: 1%The reference temperature is 20C. Accessories: 1*measurement device 1*pipette, 1*cleaning cloth, 1*screwdrivernotes: 1. Accurate measurement is based on good calibration, please calibrate the refractometer before first use. 2. Please keep the refractometer dry and clean to make the instrument accurate and durable. Note: Not recommended for wine or other products high in sugar and other ingredients. 1. Simple and fast measuring alcohol refractometer, used to test the alcohol volume percentage of brandy, whiskey, vodka, etc. Note: Not recommended for wine or any other products high in sugar and other ingredients. 2. Accurate ATC reading: Handheld alcohol refractometer with automatic temperature compensation (ATC), no need to worry about temperature changes affecting the reading accuracy. Refractometers used to measure alcohol volume percent take into account changes in ambient temperature and automatically compensate for them accordingly for accurate and repeatable measurements. 3. Unlimited use: It is a portable optical instrument for bartenders, wine merchants, food manufacturers, etc. The scale range is 0-80%V/V (V/V-alcohol volume percentage), graduation: 1%v/five. Fourth metal plastic: The alcohol refractometer is made of non-staining, non-corrosive, non-reactive aluminum, which is easy to carry, scratch-resistant and durable. 5. Note: Not recommended for wine or any foods high in sugar or other ingredients.