Handheld Sugar Refractometer Precautions
This instrument is a precision optical instrument, please pay attention to the following precautions when using and maintaining:
1. Must be used strictly in accordance with the instructions. It is not allowed to loose each connection part of the instrument, drop, bump and violent vibration
2. Do not wash with water directly after use. It should be wiped with a clean soft cloth. No bumps or scratches on the optical surface
3. The instrument should be stored in a dry, non-corrosive gas environment.
4. Prevent the loss of spare parts
