Extech RF20 Salinity Refractometer with ATC

Type: Salt (ATC)

Ranges: 0 to 100ppt (10 to 30°C)

             1.000 to 1.070 Refractive Index

Resolution: 0.001

Accuracy: ±0.1‰

Dimensions/Wt: 7.6 x 1.5 x 1.5" (194 x 38 x 38mm)/ 8oz (227g);

Complete with case, calibration screwdriver, and calibration solution



  • Compact size, easy to operate
  • Automatic Temperature Compensation (ATC) from 10 to 30°C
  • Provides accurate and repeatable measurements on easy to read scale
  • Requires only 2 or 3 drops of solution
  • The prism and lens with a simple focus adjustment
  • Complete with case, calibration screwdriver, plastic pipette and calibration solution




  • Quality Engagement
  • Easy change and return
  • Delivery Avaliable
  • Favorable payment