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Digital Pupilometer PD-200 model INS-11040.

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

Method of measurement: Cornea reflection light coincidence method.

Range of measurement: 45 to 82mm

Graduation: 0.5mm

Range focusing point: 30cm to infinity

Auto-off time: 1 minute

Dimensions: 9 x 7 x 3 in / 23 x 17 x 7 cm

Weight: 23 oz / 652 g