Optical Digital Pupilometer PD Optometry Ophthalmic Ruler Eyesight Test Instrument
Features:
1. Digital display, easy to use;
2. Left and right pupil distance are displayed spearately;
3. Automatic turn off when keep flat.
Specifications:
1) Effective Measuring Range:
Binoculus pupil distance: 45~82mm
Left or right pupil distance: 22.5~41mm
2) Indication Error: 0.5mm
3) Asymmetry Error: 0.5mm
4) Rounding Erro: 0.5mm
5) Power Supply: 12V DC23AE Battery (Not included)
6) Size: 175x85x30mm
7) Net Weight: 0.2kg