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Persona de contacto Mr. David
No.500,South Xiangyang Road, Shanghai, Shanghai
Uses: PD Meter is a digital precision optical instrument used to measure distance between human pupils in the process of optometry. Characteristics: This device is designed in a scientific and reasonable way, integrating technologies on optics, microelectronics. MAIN TECHNICAL INDEXES 1ã€Range of data displayï&frac*4;š Binocular pupillary distanceï&frac*4;š*4ï&frac*2;ž*3mm Left or right pupillary distanceï&frac*4;š*2ï&frac*2;ž*1.5mm 2ã€Effective range of measurementï&frac*4;š Binocular pupillary distanceï&frac*4;š*5ï&frac*2;ž*2mm Left or right pupillary distanceï&frac*4;š*2.5ï&frac*2;ž*1mm 3ã€Indication errorï&frac*4;š ≤0.5mm 4ã€Rounding errorï&frac*4;š ≤0.5mm 5ã€Distance of targetï&frac*4;š *0cmï&frac*2;žâˆž 6ã€Power sourceï&frac*4;š Voltageï&frac*4;šDC 6V Specificationï&frac*4;š AA battery Quantityï&frac*4;š4 pieces 7ã€Time for automatic shut-offï&frac*4;š 1 and a half minutes after stopping operation 8ã€Overall dimensionsï&frac*4;š **9mm(L)×**9mm(W)×*6mm(H) 9ã€Weightï&frac*4;š 0.7kg