ITEM NAME:4x Alcohol Hydrometer Thermometer Set F/ Home Brew Wine Liquor Mead Tester Meter Descriptio n Feartures: Professional alcohol hydrometer meter for wine Vodka whiskey measuring instrument measuring tools with plastic case the scale of the hydrometer measures from 0 to 100 degrees alcohol Three piece hydrometer alcohol meter from 0 to 100% 0-40 / 40- 70 / 70-100 with 1 pieces 0-50 degrees thermometer Material: Glass Color:As the Picture Size: 252*102*3mm Instructions: The amount of alcohol alcohol concentration measured only at standard temperature (20 Â ° C) is the actual concentration of alcohol. However, in practice the temperature of the alcohol is not the standard temperature of 20 Celsius, so you need a non-standard conversion of the alcohol concentration measured at standard temperature in degrees. The conversion table is prepared for this purpose. Scope of application of surface temperature 0- + 40 degrees Celsius Directions for use: 1. The Alcohol meter should be cleaned and dried before use (cleaned with soap or alcohol). 2. After cleaning the alcohol meter-The hand can not take on the recorded line-you should gently keep your index finger and thumb on top of the dry tube. 3. The graduated cylinder should be cleaned to avoid affecting the readings. 4. If you find indexing paper-glass cracks-surface of dirt attached and can not be removed-the alcohol count should stop using it immediately. Product List: Alcohol meter *3 Thermometer *1 Wooden box *1 User manual in English*1 High quality buy, happy buyï ¼ 4x Alcohol Hydrometer Thermometer Set F/ Home Brew Wine Liquor Mead Tester Meter.The conversion table is prepared for this purpose. Scope of application of surface temperature 0- + 40 degrees Celsius. We'd like to settle any problem in a friendly manner. We want to make sure you are happy with our item.