Use for reading sugar levels for fruit, honey, grapes (Alcoholic degree), fruit juice, and jam.

• ​Clearly degree shown
• Alloy body, Comfortable handle
• Front cover to protect the tester

Operating Instruction

1. Aim the front of the indicator in the direction of bright light and adjust the adjusting ring of the diopter until the reticle can be seen clearly. 
2. This model should adjust at 20°C environment temperature. Open the cover plate. 
3. Put one or two drops of distilled water on the prism. 
4. Close the cover plate and press it lightly, then adjust the correct screw to make the light/dark boundary coincide with the null line.