Enviro Testers Newest Optical Handheld Refractometer

This newest optical handheld refractometer has a DC range of 0.00 D to 3.00 D, an axis range of 1° to 180°, and a pupil size of 4.0 mm to 9.00 mm.

SKU: ETEHRFM-304 Category:

Technical Specifications

Ds Range -7.50 D to +7.50 D
Ds Accuracy ±0.50 D
Dc Range 0.00 D to 3.00 D
Dc Resolution 0.25 D to 0.01 D
Dc Accuracy ±0.50 D
Axis Range 1° to 180°
Axis Resolution
Axis Accuracy ±5°
Pupil Size 0.16 in to 0.35 in (4.0 mm to 9.0 mm)
Resolution 0.0039 in (0.1 mm)
Accuracy ±0.0039 in (0.1 mm)
Pupil Distance Range 1.37 in to 3.14 in (35 mm to 80 mm)
Pupil Resolution 0.039 in (1 mm)
Pupil Accuracy 0.039 in (1 mm)
Gaze 0° to 20°
Measuring Distance 0.039 in (1 mm),
1.969 in (± 5 cm)
Time Per Measurement 1 s

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