P D METER

Useful tool for Refraction measurement
Fast & easy measurement of inter-pupillary distance (PD)

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SPECIFICATIONS :

Range of measurement : 48 to 77 mm (Both eyes), 24 to 38.5mm (Each eyes)

Graduations : 0.5mm

Range of focusing point : 30 to infinity

Power supply : 4.5V DC (Batteries AAA X 3)

Specifications subject to change without notice

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