Huanyu Digital PD Meter - 50-80MM Optical Pupil Distance Meter, CE Approved

About this item

• Our PD Meter is a precision optical instrument with a Digital LCD Display. It is used in optometry to measure the distance between human pupils for fitting glasses.
• Effective Measurement Range: binocular measurement: 50 to 80 mm; monocular measurement: 25 to 40 mm (Resolution: 0.5 mm).
• Monocular Measurment Avaliable: it can be used in monocular measuring the left eye and right eye separately, and the measuring values are displayed separately.
• Adjustable Viewing Distance Range: the viewing distance is from 30cm to infinity, which can meet various needs.
• Power Saving: in order to prevent power consumption caused by forgetting to shut down, the switch automatically turns off within about 1 minute after the operation is completed.