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Binocular papillary distance 45 ~ 82 mm
Left or right papillary distance 22.5 ~ 41 mm
Indication Error ≤ 0.5 mm
Asmmetrical error ≤ 0.5 mm
Rounding Error ≤ 0.5 mm
Distance of Target 30 cm ~ ∞
Power Supply DC 3-3.7V; 2 x 5# AA Battery
Time for Automatic Shut-off About one minute after stopping operation
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United States
Carrier
CostDelivery TimeTracking
Company
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Effective Range of Measurement: