product Material: metal + plastic Measuring range: 0-80%. Minimum unit: 1% Accuracy: 1% The reference temperature is 20C. Accessories: 1* measuring tool 1* pipette 1* cleaning cloth 1* screwdriver notes: 1. Accurate measurement is based on good calibration, please calibrate the refractometer before first use. 2. Please keep the refractometer dry and clean to ensure the accuracy and durability of the instrument. Note: Not recommended for use in wine or other products high in sugar and other ingredients. 1. Simple and fast measurement of alcohol refractometer is used to test the volume percentage of alcohol in brandy, whiskey, vodka, etc. NOTE: Not recommended for use in wine or any other product high in sugar and other ingredients. 2. Accurate readings with ATC: The hand-held alcohol refractometer has automatic temperature compensation (ATC), no longer worry about temperature changes affecting the reading accuracy. Refractometers used to measure alcohol by volume take into accountchanges in ambient temperature and automatically compensate for it accordingly for accurate and repeatable measurements. 3. Unlimited use: It is a portable optical instrument for bartenders, wine merchants and food manufacturers, etc., with a scale range of 0-80%V/V (V/V-alcohol volume percentage), division: 1%v/ Fives. 4. Metal + plastic: Alcohol refractometer is made of non-staining, non-corroding, non-reactive aluminum, easy to carry, scratch-resistant and durable. 5. Note: Not recommended for use with wine or anything high in sugar or other ingredients. Shipment Quantity: 1 piece Package Contents: Only the above package content, other products are not included. Size: 190*20mm (Reminder: The size is measured manually, please allow 1-2cm measurement error) Colour: Black (Due to different monitors and lighting effects, the actual color of the product may be slightly different from the picture color.) Products from LUOLV's store