Overview:
A digital precision optical instrument used to measure the distance and height of human eyes during the process of optometry and glasses matching.
Detailed product description:
1. This instrument adopts a precise optical structure, with clear optical path and accurate measurement. The measurement data is displayed digitally and displayed on the left and right sides respectively.
2. Simple operation and fast measurement speed. And with the adjustable distance knob, it is suitable for the visual range of different subjects, making the measurement of pupil distance simple and accurate.
3. After the measurement is completed, it has a memory function and data will not be lost.
4. Can be measured with one eye on the left or right, respectively.
Parameters:
Effective measurement range: binocular pupil distance: 46-82mm, left and right pupil distance: 223-41mm
Indication error: ≤ 0.5mm
Target distance: 30cm~∞
Voltage: DC 3V (2 AA batteries)
Net weight: 0.7kg
Inner box size: 28 (L) x 19 (w) x 10 (H) cm
