The REFRACTOMETER is a tool for testing the concentration of antifreeze, windshield washer fluid, and the density of battery electrolyte. The refractometer is made of brass, the measuring scale is engraved, and the casing is made of aluminum, making it resistant to weather conditions.

Technical Data:

• A. Freezing point of antifreeze
• B. Freezing point of windshield washer fluid
• C. Density of electrolyte
• D. Light line

Reference Points:

• 1. Prism
• 2. Cap
• 3. Adjustment screw
• 4. Body of the refractometer
• 5. Optical tube with focusing ring