Enviro Testers Eyesight Test Handheld Refractometer

This Eyesight Test 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-244 Category:

Features

  • Portable auto refractometer
  • Can check the refractive error precisely for diverse groups of people
  • Uses the ultrasonic ranging, cross line, flashing light and sound technology
  • Find out the potential refractive problems
  • Ideal for babies, seniors, and patients with language barriers.

 

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 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)
Gaze 0° to 20°
Measuring Distance 0.039 in (1 mm), 1.96 in (± 5 cm)
Time Per Measurement 1 s
Display 5-inch Touch Screen
Size 7.08 in x 5.11 in x 4.33 in
(180 mm x 130 mm x 110 mm)
Weight 28.21 oz (800 g)

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