High Precision PD Ruler Double Pupil Distance 45-82Mm Single Pupil Distance 22.5-41Mm Single Pupil Distance Measuring Instrument

usage method1. Set rangingHold the pupillary distance meter with both hands up the subject's nose and forehead against the instrument, and ask the subject to move the left and right hands to aim at the center line of the eye2. Measurement completedThe measurement data can be displayed, and the instrument will automatically shut down 1.5 minutes after it is stoppedNote:During operation, the instrument operation indicator lights up, all measured values will be displayed (pupillary distance of left and right eyes, total visual distance and distance measurement), and all data should be recorded on paper to avoid errors when binocular measurement fails. The left and right eyes can be measured separately with a light shieldSpecificationsName: Digital display pupillary distance meterSize: 22 * 17 * 6cmWeight: 0.6KGPower: 10WEffective measuring rangeDistance between eyes: 45-82mmUniocular pupillary distance: 22.5-41mmIndication error:<0.5mmTarget distance: 30cm~∞Automatic shutdown time: the initial setting is half a minute after the shutdown, or it can be manually shut downPackage includes1 * Pupil distance meter

• The instrument adopts optical structure, with clear optical path, accurate measurement, digital display of measurement data, and left and right display respectively.
• Simple operation and fast measurement speed. And with the adjustable distance knob, it is suitable for the sight distance of different subjects, making the measurement of pupil distance simple and accurate.
• After the measurement, it has automatic shutdown and memory functions, saving power and data will not be lost.
• It can be measured left or right monocular respectively.
• Note: During operation, the instrument operation indicator lights up and all measured values will be displayed