| Digital PD Meter optical puilometer LCD display
Introductions
1, it is a digital precision optical instrument used to measure distance between human pupils in the process of optometry for fitting spectacles. it can also be used in monocular the left eye and right eye separately.
2, It is simple and rapid measuring operation and free operation of the direct PD adjustment lever are possible. Combining with the adjustable viewing distance selecting lever for measuring all kind of the viewing distances, the PD measurement is simple and precise.
3.It employs precise optical structure, the line of light is very clear and precise measurement, the measurement results are displayed digitally, and the left eye and right eye measuring values are displayed separately.
4.when the measuring operation is finished, the auto power off and memory function, enable to save the power and not to lose the data.
Specifications
Effective range of the measurement: binocular papillary distance: 45-80mm
Left or right papillary distance: 22.5-40mm
Indication error: ≤0.5mm
Distance of target : 30cm~∞
Power:10w
Electric voltage: DC4.5V (3pcs 5#AA battery)
packaged does not include battery inside .
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