This refractometer is a professionalmeter to measure the moisture, sugar concentration and the baume degree of honey. Easy to calibrate and read the scale clearly. Features: Made of premium materials, lightweight, small size and portable to carry. Features automatic temperature compensation. High accurate and the clear calibration is easy to read. The rubber handle is non-slip, comfortable to hold. Professionalmeterto measure the moisture, sugar contentand the baume degree of honey. How to operate: 1.Open the cover and carefully wipe the inspection prism with a soft cloth.2.Take a few drops of test solution, placed on the detection prism, gently close the cover to avoid the bubble, so that the solution throughout the prism surface.3.Align the light source or the bright place, the eye observes the market through the eyepiece, turn the eyepiece to adjust the hand wheel. 4.Make the blue and white lines of view clear, the dividing line of the scale value is the concentration of the solution. Specification:Condition: 100% Brand NewMaterial: Aluminum, RubberColor: Shown as PictureMeasuring Range: Brix content: 58 - 90% Water content: 12-27% Baume degree: 38 - 43 degreesBrix Measurement Accuracy: 1%Length: approx.14.5cm/5.71inWeight: approx.227g/8.01oz Package List: 1 * Refractometer1 x Pipette1 x Screwdriver 1 x Instruction 1 x Cleaning Cloth Note: