? ACCURATE READINGS WITH ATC: Hand Held Brewing Refractometer with Automatic Temperature Compensation(ATC), the brix refractometer will account for changes in ambient temperature and automatically compensate accordingly to Provides accurate and repeatable measurements on easy to read scale. ? EASY TO USE: Just take a drop or 2 of your brew on the prism and hold the refractometer to the light, then look through the eyepiece to get the reading. No lookup table needed and no waste! ? High quality pure aluminum body construction ? Uses ambient light only which means battery or power source is not required ? For sugar concentration in fruit juices, soft drinks, vegetables, foods and cooling lubricants 0-32% Brix Refractometer ATC High-Concentrated Sugar Solution Content Test Tool Best for quality control in research, clinical laboratories, food beverage industry, wine and beer industry to track fermentation process, and sugar related liquids like fruit juices, soft drinks, wine, etc Maintain proper concentration of your cutting and grinding fluids Aids growing plants, fruits vegetables, measure ripeness in the fruit Uses subtle and comfortable non-slip rubberized grip, separates test solution from body heat Intended Use For brix measurement of sugary liquids such as brandy, beer, ale, fruit juice and milk beverages etc. The usual sucrose concentration of selected substances beer wort 0-20 / tomato juice 3 ~ 6 peach juice 6 ~ 12 / orange juice 6 ~ 13 apricots 8 ~ 11 / sour cherry 8 ~ 18 pears 8 ~ 22 / prunes 9 ~ 14 mirabelle plum 10 ~ 15 cherries 10 ~ 18 gentian (Gentiana lutea) 10 ~ 25 rowanberries 14 / milk beverages 16 ~ 21 plums 18 ~ 22 / juniper - berries 30 so on! Features Take full control of your brew Take full control of your home brew with this Brix Refractometer by testing brix at any point during the process to optimize the quality and flavor to your satisfaction. Our refractometer will make you more efficient at making homemade beer, wine, fruit juices and other homemade beverages by substituting the traditional hydrometer with the Handheld Brix Refractometer. Automatic Temperature Compensation The build-in Automatic Temperature Compensation feature makes it possiable to get consistently accurate reading, you don't need to control the temperature of the sample liquids deliberately, just make sure it's room-temperature ( between 0-35 degree) . Simple Calibration! Yes you can calibrate the refractometer! Unlike many refractometer available in the market it can be calibrated easily. Portable compact package The refractometer comes with dropper, screwdriver, user manual and cleaning cloth, all included in a hard compact case. It very portable and easy to carry. Application Used for quality control in research, clinical laboratories, food beverage industry Used in wine and beer industry to track fermentation process Maintain proper concentration of your cutting and grinding fluids save you money! Check your growing plants, fruits vegetables, measure ripeness in the fruit Works w/ sugar related liquids like fruit juices, soft drinks, wine, etc