Extech RF20 Portable Salinity Refractometer (0 to 100ppt) with ATC

Product Highlights

• Easy to operate refractometers provide accurate and repeatable measurements on easy to read scales
• Automatic Temperature Compensation (RF15 and RF20)*Only Certain Models
• Requires only 2 or 3 drops of solution
• The prism and lens with a simple focus adjustment provides Model RF20 (Salinity)
• Salinity refractometer measures the concentration of dissolved salt in water repeatable results

Each Unit Includes

• Carrying case
• Calibration screwdriver