Features: * brand new and high quality *Using imported high-definition prisma, easy to check, the reading is clear and accurate *Metal knob, beautiful and durable *Precise and rational design, accurate and fast data detection * This brix refractometer includes a specific gravity scale. You won't have to do conversions between brix and gravity when measuring the Original Gravity of musts or wort. Measuring final gravity accurately will still take some calculations, as the presence of alcohol does affect the reading. Best of all, it only requires a few drops of liquid for an accurate reading. No need to lose a whole hydrometer test jar of beer or wine in the process. * The Specific Gravity scale will provide a quick reading of your Original Gravity. Once fermentation has begun and alcohol is present, keep track of the Brix scale and use the Refractometer Calculator for Final Gravity correction. * ATC Compensation Range (Built-in Automatic Temperature Compensation System) from 10~30°C. * Easy and very convenient to use. Place a few drops of the liquid on the optical part of the refractometer, cover the prism (the liquid will spread more easily over the prism), look through the eyepiece against the light (focus, if necessary) and you will be able to read the result value on the scale. Specification: Scale / Characteristic: Glucose/sugar Scale Range: 0~32% Bx Resolution: 0.1% Bx Scale / Characteristic: Wort Specific Gravity Scale Range: 1.000~1.130 Resolution: 0.001 Automatic Temperature Compensation (ATC: 10~30°C) Length: 170mm Using Instruction: 1. Open the cover and carefully wipe the prisma with a soft cloth. 2. Take a few drops of the solution to be measured, place on the detection prisma, gently close the cover to avoid producing bubbles which will make the solution spread all over the prisma surface. 3. Put the cover directly point to the light source or bright place, observe the field of view through the eyepiece. 4. Turn the eyepiece to adjust the hand wheel to make the blue and white line clear. The scale value of the dividing line is the concentration of the solution. Package Contents: 1*Refractometer 1*User manual 1*Screwdriver 1*Straw 1*Glasses cloth 1*Box Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.