Enviro Testers Handheld Full Auto Refractometer

This handheld full auto refractometer has a sphere range of -10.0 D to +10.0 D, a sphere tolerance of ± 0.5 D, and a cylinder tolerance of ± 0.5 D.

SKU: ETEHRFM-264 Category:

Technical specifications

Sphere Range -10.0 D to +10.0 D
Sphere Tolerance ± 0.5 D
Cylinder Range -5.0 D to +5.0 D
Cylinder Tolerance ± 0.5 D
Axis Of Astigmatism Range 1° to 180°
Data Acquisition Time <1 s/eye
Weight 12.69 oz (360 g)

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