Pupillometers for Measuring Pupillary Distance (PD) with Electronic Instruction Manual, Transparent PD Ruler, Essential Tool for Single PD or Dual PD Measurement

The Ultrassist PD Ruler is a must-have tool for anyone looking to measure their pupillary distance (PD) accurately and easily.

Made of high-quality transparent PVC, this ruler is lightweight, flexible, and easy to use, with three different printed scales features that allow you to measure either single or dual PD.

The classic straight edge design ensures accuracy and stability, and the nose bridge design helps keep the ruler centered.

With a range of 23mm-42mm each side, this ruler can measure PD distances between 46mm and 84mm.

Don't trust your prescription glasses purchase to just anyone - use the Ultrassist PD Ruler to ensure you get the perfect fit every time!