Product Code: KL25072The high-quality Kegland Saber Refractometer offers exceptional accuracy and ease of use. Calibration is simple with just a few drops of distilled water and the included mini screwdriver. Essential for all-grain brewing, this refractometer provides fast, reliable readings and features a triple scale for brewing, winemaking, and distilling. Now available in a water-resistant, rechargeable design, it also includes a charging cable and a white storage case. Additionally, it features automatic temperature compensation (ATC) for consistent results.Specifications: Resolution: 0.2% Brix Resolution: 0.001 SG Sugar Resolution: 0.001 SG Wort Good readability Adjustable eyepiece focus Automatic temperature compensation between 10°C and 30°C (ATC) Includes: Kegland Saber Refractometer Protective White Storage Case Mini Calibration Screwdriver A Pipette (for sample collection) Dimensions:7 7/8" LengthHow to Calibrate: Add 10 drops of clean, filtered water (preferably deionized) to the sample end of your refractometer Using either direct sunlight or the LED light, check the blue shaded area. If the reading is not 1.000, use a flathead screwdriver to adjust the calibration screw on the underside of the refractometer until it reads 1.000