.<br> Material: metal + plastic<br> Measuring range: 0-80%<br> Accuracy: 1 %<br> Reference temperature 20C<br> 1 * Measuring device 1 * Pipette, 1 * Cleaning cloth, 1 * Screwdriver<br> Note: 1. Accurate measurement is based on good calibration, please calibrate the refractometer before first use.<br> 2. Please keep the refractometer dry and clean to ensure the accuracy and durability of the instrument.<br> Note: Not recommended for wine or other ingredients with high sugar content.<br> 1. Convenient and quick measuring alcohol refractometer for testing alcohol by volume percentage of brandy, whisky, vodka, etc. Note: Not recommended for wine or other products with high sugar or other ingredients.<br> 2. Automatic Temperature Compensation (ATC): Handheld alcohol refractometer with automatic temperature compensation (ATC), no need to worry about temperature changes affecting the accuracy of the readings. Refractometers used to measure alcohol by volume take into account changes in ambient temperature and automatically compensate accordingly to ensure the accuracy and repeatability of measurements.<br> 3. Wide range of uses: This is a portable optical instrument for bartenders, alcohol distributors, food manufacturers, etc.<br> 4. METAL + PLASTIC: The alcohol refractometer is made of non-polluting, non-corrosive and non-reactive aluminium, which is easy to carry, scratch-resistant and wear-resistant.<br> 5. NOTE: Not recommended for wine or anything high in sugar or other ingredients. Note: 1.Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 98 hours Hope you have a pleasant shopping experience!