Product Description
Technical parameters
Effective range: binocular pupillary distance: 45-80mm, left, right IPD: 22.5-40mm
Indication error: ≤0.5mm
Target distance: 30cm ~ ∞
Voltage: DC 4.5V AA batteries [4]
Power: 10W
Weight: 0.6kg
Within the box size: 21.5 (L) x15 (w) x50 (H) cm
NOTE:
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• 1.This device is designed in a scientific and reasonable way, integrating technologies on optics, microelectronics.
• 2.Effective range: binocular pupillary distance: 45-80mm, left, right IPD: 22.5-40mm
• 3.Pd Meter Is a Digital Precision Optical Instrument Used to Measure Distance Between Human Pupils in The Process of Optometry.
• 4.Indication error: ≤0.5mm
• 5.It Adopts Linear Sensors of High Precision, Highly Intellectualized Electronic System and Digital Display of Measurement Results Which Is More Accurate, Direct and Easy to Read

1.This device is designed in a scientific and reasonable way, integrating technologies on optics, microelectronics.lawkiaa