Extech RF Series
Portable Refractometers
Models RF10, RF15, RF18, RF20, RF40

• Easy to operate refractometers provide accurate and repeatable measurements on easy to read scales
• Automatic Temperature Compensation (RF15 and RF20 only) for sugar, salt, protein, and battery coolant
• Requires only 2 or 3 drops of solution
• The prism and lens with a simple focus adjustment provides repeatable results

RF10 & RF15 (Sucrose)

• Sucrose brix refractometers measure the concentration of sugar in fruit juice and industrial fluids

Model RF20 (Salinity)

• Salinity refractometer measures the concentration of dissolved salt in water