MAJOR TECHNICAL PARAMETERS Range of measurement: Pupillary distance of two eyes: 45mm—82mm; Pupillary distance of the left and right eyes: 22.5mm—41mm;
Working distance measuring grades: 30cm、35cm、40cm、50cm、65cm、1m、2m、∞;
Indication error:<0.5mm;
Asymmetry error:<0.5mm;
Rounding error:<0.5mm;
Automatic shut-off:1 minute after operation stops;
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