Portable Refractometer For Liquor Alcohol Content Meter 0-80% V/V ATC Durable Alcohol Concentration Refractometers Retail Box How to Use: 1. Align the Cover Plate with light, adjust the Focus Adjustment until you see the scale clearly. 2. Calibration: Accurate Measurement depends on careful calibration. Please make sure the ambient temperature is about 68 F, distilled water can be used to calibrate. Open the Cover plate. place 2-3 drops of the distilled water on the prism, then close the cover plate and make sure the water spread aro the prism without any air bubbles or dry spots. wait for about 30 seconds to let the reading to stabilize. Look into eyepiece and turn the calibration screw with the screw driver until the reading is "0" 3. Clean the prism with soft cloth, then place 2-3 drops of the liquid sample to be tested on the prism.then close the cover plate and make sure the water spread aro the prism without any air bubbles or dry spots. wait for about 30 seconds to let the reading to stabilize. Align the prism aembly with the light source. look into eyepiece and you can get the reading. Features: Heavy-duty and lightweight with its aluminum construction High quality and accurate testing results are guaranteed Equipped with Built-in ATC compensation Range (Automatic Temperature Compensation) from 10 to 30 to correct temperature discrepancies during use Easy to focus & calibrate and very convenient to use Durable and built to last long Comprehensive operations manual, complete with soft & protective carrying case, pipette and mini-screw driver for easy calibration are provided for user's convenience and comfortability Specifications: Measuring Range : V/V 0-80% Minimum Divisions : V/V 1% Accuracy : 1% Length : 202mm Weight: 164g Heavy duty (Durable Aluminum) Removing alcohol concentration test refractometer 0-80% alcohol liquor concentration meter, rice wine concentration test and used in the detection of liquor alcohol content, alcohol refractometer series (liquor) is specifically detect the concentration of ethanol in aqueous solution the most intuitive instrument, can rapid determination of alcohol (ethanol) percentage concentration. This model Refractometer works for alcohol testing (to test the alcohol concentration in the alcohol solution, not the grape wines or the other fruit wines). Its unit is W/W (Weight/Weight), the refractometers working temperature is suggested at 20C (about 18C to 25C). Measure the alcohol content accurately in seconds! All you need to do is manufacture a distillate of the liquids to be measured, and then place the distilled sample on the prism. Many of the refractometers on the market are made of plastic. However, people who work with alcoholic beverages or industrial fluids on a regular basis believe that metal refractometers provide more accurate measurements and that they simply stand up better over time and provides you with fast, accurate results - the very same characteristics that you get with all our Refractometers. Packing List: 1 x Refractometer 1 x Pipette 1 x Screw Driver 1 x Cleaning Cloth 1 x English Instruction Manua 1 x Refractometer Incl retail Box null