Sunwin 48mm-77mm Optical Digital Pupillary Distance Meter Pupillary Distance Measuring Tool with LCD Display Optical Pd

1.ACCURATE COMPARED TO OTHER PUPILOMETER READING-Cornea reflection light coincidence method is used. This operates by aligning luminous points on the pupils with the measuring line.
2.TURN OFF AUTOMATICALLY- Automatic power shut-off in one minute after operation is completed. Store device flat side down, it will turn off automatically.
3.DISPLAYED IN 3 MEASUREMENTS - Right, Right/Left, Left.By emitting point on the pupil alignment and measurement of light measurements can be carried out in two ways by monocular and binocular Data display range: eyes IPD 44-83mm
4.EASY TO USE AND EXCELLENT PRICE -It is extremely easy to use and it