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瞳距仪(PD-200)
PD Meter is a digital precision optical instrument used to measure distance between human pupils in the process of optometry.
This device is designed in a scientific and reasonable way, integrating technologies on optics, microelectronics.
Detailed description
PD Meter
Model No.: PD-200
Specifications:
1、Range of data display： Binocular pupillary distance：44～83mm
Left or right pupillary distance：22～41.5mm
2、Effective range of measurement：
Binocular pupillary distance：45～82mm
Left or right pupillary distance：22.5～41mm
3、Indication error： ≤0.5mm
4、Rounding error： ≤0.5mm
5、Distance of target： 30cm～∞
6、Power source： Voltage：DC 6V
Specification：5# AA battery
Quantity：4 pieces
7、Time for automatic shut-off：
1 and a half minutes after stopping operation
8、Overall dimensions： 219mm(L)×169mm(W)×86mm(H)
9、Weight： 0.7kg
