The Digital PD Meter CE APPROVED Optical Pupil meter PD Pupil Meter The PD Meter

The PD Meter is a digital precision optical instrument used to measure distance between human pupils in the process of optometry for fitting spectacles.

Characteristics:
This device is designed in a scientific and reasonable way, integrating technoloies on optics, mechanism, electricity and micro-computer into a whole.
Using an optical method to realize hairspring orientation which replaces the mechanical orientation.
Adopting a full-digital design to effectively eliminate error in optometrist's artificial measurement, thus allowing objective and precise measurementof patient's pupuillary distance.
Adopting a humanized figuration design to make it easy to operate and have pretty appearance.
A flexible baffle design convenient for storage which avoids possible embarrassment in operation.

Features:
Range of data display:
Binocular pupillary distance: 48~82mm
Left or right pupillary distance: 22~41mm
Effective range of measurement:
Binocular pupillary distance: 45~82mm
Left or right pupillary distance: 22.5~41mm
Indication error: ≤0.5mm
Rounding error: ≤0.5mm
Distance of target: 30cm~∞

Power source:
Voltage: DC 6V
Specification:5# AA battery
Quantity: 4 pieces
Time for automatic shut-off: 1 minute after stopping operation
Size: 212mm(L) x 158mm(W) x 58mm(H)
Weight: 0.55kg

Package:
1 X The Digital PD Meter
1 x User's manual