100% brand new and high quality This refractometer is specifically created for brewing of BEER but it can also be great for: Fruits, vegetables & graes: monitor and control sugar concentrations in foods, beverages, crops and plants, checking the "ripene"of fruit in the field and verifying product quality after harvesting and/or controlling concentrations during proceing and packaging to ensure product quality Wine or beer: use Brix readings to get wort sugars and help determine finished alcohol readings (for alcohol reading, best use in conjunction with a hydrometer) Metalworking fluids: helps in maintenance of coolants and water soluble drawing & stamping compounds and commonly used for controlling the concentration of various industrial fluids like cutting lubricants and flux rinsing compounds The need to consult temperature correction charts is eliminated with the built-in 10-30C ATC. The unit also comes with a manual calibration knob that is secured with a lock nut and has a brighter display than the more narrow range refractometers. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures, but not the same performance on different bodies as on the model. Thank you!! -Please allow 1-3mm error due to manual measurement. -Please make sure you do not mind before you bid.