Honey Refractometer for Honey Moisture, Brix and Baume, 3 in 1 Use, 58-90% Brix Range Honey Moisture Tester with ATC, Ideal for Honey, Maple Syrup ; Molasses, Bee Feeding Supplies The refractometer series is based on the principle that the refractive index of a liquid changes with the concentration. Portable, simple, fast and battery-free, it is easier and more accurate than traditional water meters and more affordable than digital meters. It is the perfect tool for adults or young adults, home or professional use. It has high quality optics and smooth focusing. Its body is made of aluminum alloy. The built-in high-refractive-index optical lens constitutes a precise optical system. The instrument is wear-resistant and corrosion-resistant, and can be used to measure general corrosive liquids. (But we do not recommend measuring these liquids for extended periods of time. Residues should be removed immediately after measurement.) 3-in-1 Honey Refractometer This refractometer is a portable precision optical instrument that is a handy tool for checking the quality of honey and other high sugar related liquids such as maple syrup and molasses. Helps you understand the ideal time for honey harvest or maple syrup production. Its 3-in-1 ratio design lets you know three metrics at once: Honey Moisture/Brix/Baume. Measuring range: water content (moisture) 12-27%, Brix 58-90%, Be' (Baume) 38-43. Grading: 0.5% water, 0.5% Brix, 0.25 Be' (Baume). DURABLE AND SAFE MATERIALS This honey refractometer is made of non-staining, non-corrosive and non-reactive chrome material to ensure hygiene and safety for all users. Automatic Temperature Compensation Built-in automatic temperature compensation allows you to get consistently accurate readings, you don't need to control the temperature of the liquid, just make sure it's at room temperature (between 0-30 degrees). Portable Compact Package Refractometer comes with a dropper, screwdriver, user manual and cleaning cloth, all contained in a compact hard case, the item measures 8"x3"x2" and the item weighs only 8.6 oz. Very portable and convenient Carry. Is it complicated to use a refractometer? Easy to use. Using a refractometer is actually quite simple. There are two simple steps to using a refractometer: Calibration and measurement. Calibration: Put a few drops of calibration solution on it and adjust the calibration screw with a screwdriver until the reading is appropriate. (The user manual documents details of the correct calibration solution and reading index.) Measure: Put a few drops of the solution you want to test on the prism and look into the eyepiece and you will get the reading.