Digital pupilometer Optical PD Meter LCD Display 4.5V Powered 3 AA Batteries

Usage: To measure the eyes of the distance between the two pupils a digital precision optical instrument

Introduction:
Precision optical structure, the light path is clear, measuring accurately, according to measured data, and respectively show around.
Easy to use, measurement speed is fast. From and cooperate with the adjustable knobs, suitable for different subjects of stadia
After the measurement with automatic shutdown and memory function, save electricity and data is not lost
Can be left or right measurements respectively

Specifications:
Range of measurement: 50-80mm(Total) in 0.5mm steps, 22.5-40mm(Each) in 0.5mm steps
Display: crystal digital display
Fixation target: Green dot on illuminated background
Focus range: 30cm to infinity
Illumination: LED
Automatical shut-off: after one minute of inactivity
supply: 4.5V , 3 AA batteries
Features:
Cornea reflection light coincidence method is used.
This operates by aligning luminous points on the pupils with the measuring line.
Results are displayed digitally in LCD window: Right, PD, Left.
Steps: 0.5mm.
and binocular PD are measurable.
Automatic shut-off in one minute after operation is completed.













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