Please confirm with the supplier: Model / reference, Key specifications / compatibility, Minimum order, Samples, Export markets, Supply capacity.
Specifications
Parameter: Effective range of measurement: Binocular pupillary distance:45mm~82mm Left or right pupillary distance:22.5mm~41mm Indication error:≤0.5mm Rounding error:≤0.5mm Distance of target:30cm~∞ Power supply: DC 3V,5# AA rechargeable battery