उत्पत्ति के प्लेस
Beijing, China
Product name ?
2021 Cheap Ophthalmic 21.5 inch monitor Vision chart
Monitor size ?
21.5 inch Screen Vision Chart Eye Test Chart
Chart part ?
E charts, C charts, numbers, alphabets, and children charts
Application ?
Optical Shop; vision test
Type ?
Ophthalmic Optical Equipments
working distance ?
2 ~6.5meters with incremental value of 0.1 meter
color blind test ?
available
Display ?
21.5" high resolution screen display
randomized charts ?
available