| specifications︰ | Product characteristics:
Main feature use exactitude optical configuration,measure more
correctly,with adjustable knob,adjust the dista.
standard:
Method of measurement:cornea reflction light coidence method
Rang of measurement:44 to 83mm (both eyes),22 to 41.5mm (each eye):
Graduations:0.5mm
Range of focusing point:30 to infinity |
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