Loudly brand higher quality PD Meter PD-30
2. Detailed Product Description
1. It employs precise optical structure, the line of light is very clear and precise measurement. The measurement results are displayed digitally, and the left eye and right eye measuring values are displayed separately.
2. Simple and rapid measuring operation, and free operation of the direct PD adjustment lever are possible. Combining with the adjustable viewing distance selecting lever for measuring all kind of the viewing distances, the PD measurement is simple and precise.
3. When the measuring operation is finished, the auto power off and memory function, enable to save the power and not to lose the data.
4. It can also be used in monocular the left eye and right eye separately