Скачать или смотреть How to use Digital PD meter PD-400?

1 Redefine the way of measuring the PD:
completely change the traditional measuring pattern, doctors no long need to stay closer to the examinee and observe through the viewing window, just place the PD against the forehead, it is ready to measure.
the test distance has been greatly improved by which, the potential cross infection of virus and diseases can be effectively avoided.

2 Higher accuracy guaranteed.
HD camera adopted completely minimizes the visual errors which are subject to be affected by the optometrist’s monocular observation. both eyes’ PD can be adjusted at the same time to increase the measurement speed.
the PD meter will go to sleep if there is no operation in 30 seconds, and then will power off if no operation in 4 minutes.

3 Longer working hours
the 3000MAh large capacity rechargeable battery provides the maximum working time, once fully charged, it can work up to 10 days based on the test of 15-20 people per day.


Specs:
1 Effective range of measurement : Binocular pupillary distance :
44-86mm; Left or right eye pupil distance: 22-43mm.
2 Absolute value of indicated error: 0.5mm.
3 Absolute value of asymmetrical error: €0.5mm.
4 Absolute value of rounding error: €0.5mm.
5 Distance of target 30 ~ 0.
6 Battery capacity: 3000mAh.
7 Instrument appearance size: 220mm x 160mm x 65mm .
8 Weight: 0.9kg.