Hospitality Enviro Tech Optometry Instrument Handheld Refractometer

This optometry instrument handheld refractometer has a DS accuracy of ±0.50 D, an axis resolution of 1°, and a timer per measurement of 1 s.

SKU: HETHRFM-259 Category:

Technical Specifications

DS Range -7.50 D to +7.50 D
DS Resolution 0.25 D to 0.01 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 Range 0.16 in to 0.35 in (4.0 mm to 9.0 mm)
Pupil Resolution 0.0039 in (0.1 mm)
Pupil Accuracy ±0.0039 in (0.1 mm)
Pupil Distance Range 1.37 in to 3.14 in (35 mm to 80 mm)
Pupil Distance Resolution 0.039 in (1 mm)
Pupil Distance Accuracy ±0.039 in (1 mm)
Gaze 0° to 20°
Measuring Distance 0.039 in (1 mm)
Time Per Measurement 1 s

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