LCD Pupil Distance Measuring Instrument, Digital Pupil Distance Measuring Ruler, Accurate Measurement/Left and Right Display/Automatic Shutdown/Memory Function, Used in Eyewear Stores

Accurate measurement Clear optical path, digital display of measurement data, and left and right display respectively Automatic shutdown After the measurement is completed, it has automatic shutdown and memory functions, saving power and preventing data loss Large screen digital pupillary distance ruler A digital pupillary distance gauge used to measure the distance between the two pupils of a person's eye during the process of optometry and glasses fitting. Product Name: Digital Pupil Distance Meter Voltage: 23A 12V battery Power: 5W Net weight: 0.2kg Packaging size: 22 (L) x12 (W) x6 (H) cm Packing list: Pupil distance ruler * 1

• Accurate measurement: The digital PD ruler has a clear optical path, precise optical structure, simple operation, and fast and accurate measurement. More accurate than the vernier PD ruler.
• Large display screen: Two white lines are very clear and visible in the dark pupils, and the pupil distance is displayed on the LCD screen. The pupillary distance measuring device has a larger screen and can also be used for both left and right eyes of a single eye.
• Operation: Place the PD device on the nose, as close as possible to the eyes, and then find the center of the pupil. The white line should be consistent with the center, and the displayed number is the distance between your pupils (in millimeters). When measuring, please keep your eyes straight ahead or the tester's nose.
• Power off memory function: The digital PD ruler will automatically turn off when set horizontally and turn on automatically when in use to save energy. With memory function, you don't have to worry about data loss.
• Application: Used to measure the distance between two pupils. This is a simple PD ruler that can help you purchase glasses online or in optical stores. Note: If you have high requirements for accuracy, we do not recommend using it.