Hand Held Bee Tools Honey Refractometer 58-92% Sugar Content Beekeeping Refractometer Honey Concentration Meter. Name: Optical 58-92% Brix Honey Sugar Meter Saccharimeter. Main purpose: Honey concentration meter, specifically designed to detect key indicators of honey. Main technical parameters: 1. Measuring range: - 58-92% (sugar content) ±1% - 13-27% (water content) ±1% - 38-43°Be (Baume) ±0.5°Be 2. Features temperature compensation function for improved accuracy. Measurement procedures: 1. Align the light refraction prism direction and adjust the eyepiece diopter ring until the reticle is clear. 2. Calibration: Use a standard solution (silicone oil) at the same temperature as the test liquid. Open the cover, apply 1 to 2 drops of standard liquid onto the refractive prism, and close the cover. Adjust the calibration screw so that the light and shade boundary in the eyepiece aligns with the horizontal line at 78.8%. 3. Measurement: Open the cover and clean the prism surface with a soft cloth. Place 1 to 2 drops of the test solution on the refractive prism, close the cover gently to spread the liquid evenly without air bubbles or dry spots. Read the value where the blue and white dividing line intersects the scale—this indicates the concentration of the liquid. 4. After measurement, wipe the prism surface and cover with a damp cloth, allow to dry, and store properly. Accessories included: 1 manual, 1 screwdriver, 1 pipette, 1 lens cloth. Precautions: 1. Accurate measurement requires proper calibration. The prism and sample must be at the same temperature. 2. Do not expose the instrument to damp conditions or immerse it in water. If fogging occurs, moisture has entered the unit. Contact a qualified service technician or dealer. 3. Do not measure abrasive or corrosive substances, as they may damage the prism coating. 4. Clean the instrument with a soft, damp cloth after each use. Failure to clean regularly may result in inaccurate readings and damage to the prism coating. 5. This is a precision optical instrument requiring careful handling and storage. Proper care ensures long-term reliable performance.