MXBAOHENG Digital Optical Pupil Distance Meter - Professional PD Ruler Glasses Measuring Tool for Eyeglasses & Contact Lenses - Accurate Ophthalmic Equipment for Eye Doctors & Optical Shops - Perfect for Eye Exams, Prescription Glasses Fitting, and Optometry Clinics

Features

Direct Point-Sampling and High Accuracy of Orientation, With Mechanical Hairspring Being Used to Level at The Reflecting Point of Human Cornea

Adopts Linear Sensors of High Precision, Highly Intellectualized Electronic System and Digital Display of Measurement Results Which Is More Accurate, Direct and Easy to Read

The Design of LED Lamp-House and Low Power-Consumption Makes The Battery Life Prolonged

The Brightness of LED Is Adjustable.+2.00d Compensation for The Degree of Eyesight Is Available