What should you pay attention to in daily maintenance of handheld refractometers?

- Keep the prism clean: After each measurement, gently wipe the prism with lens paper or anhydrous ethanol to remove any residue and prevent corrosion.

- Avoid strong vibrations: Refractometers contain precision optical components that can be affected by shocks. Always handle with care during use and storage.

- Mind the environment: Do not use the device in extreme conditions such as high temperature, high humidity, or direct sunlight. For digital models, also avoid moisture and electromagnetic interference.

Proper maintenance ensures long-term accuracy and extends the lifespan of your refractometer.