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

SKU
RF20
Manufacturer:
Extech

Key Features:

  • 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
$103.94

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The Extech RF20 measures 0 to 100ppt (10 to 30°C).
Model Type Ranges Resolution Accuracy
RF16 Sucrose 0 to 10% Brix 0.1 ±0.1%
RF11 Sucrose (ATC) 0 to 10% (10 to 30°C) 0.1 ±0.1%
RF18 Lubricants/Cutting fluids 0 to 18% Brix 0.2 ±0.2%
RF12 Lubricants/Cutting fluids (ATC) 0 to 18% Brix (10 to 30°C) 0.2 ±0.2%
RF10 Sucrose 0 to 32% Brix 0.2 ±0.2%
RF15 Sucrose (ATC) 0 to 32% Brix (10 to 30°C) 0.2 ±0.2%
RF20 Salt (ATC) 0 to 100ppt (10 to 30°C)
1.000 to 1.070 Refractive Index
0.001 ±0.1%
RF40 Coolant (ATC) -60 to 32°F Propylene Glycol freeze point
-60 to 25°F Ethylene Glycol freeze point
1.15 to 1.30 Specific Gravity of Battery Acid
2°F
2°F
0.01
±2%
±2%
RF41 Coolant (ATC) -50 to 0°C Propylene Glycol freeze point
-50 to 0°C Ethylene Glycol freeze point
1.15 to 1.30 Specific Gravity of Battery Acid
1°C
1°C
0.01
±2%
±2%
RF30 Triple Range
General Service
0 to 41% Brix
42 to 71% Brix
72 to 90% Brix
0.2
0.2
0.2
±0.2%
±0.2%
±0.2%
Dimensions/Wt RF10/RF15: 6.6 x 1.6 x 1.2" (170 x 40 x 30mm)/ 7oz (200g);
RF11/RF16: 7.5 x 1.6 x 1.2" (190 x 40 x 30mm)/ 6.5oz (185g);
RF12/RF18: 6.7 x 1.6 x 1.2" (170 x 40 x 30mm)/ 6.5oz (185g);
RF20: 7.6 x 1.5 x 1.5" (194 x 38 x 38mm)/ 8oz (227g);
RF40/RF41: 6.2 x 1.6 x 1.2" (160 x 40 x 30mm)/ 6.3oz (180g)
RF30: 7.9 x 1.5 x 1.1” (200 x 38 x 28mm)/ 21.86oz (620g)
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