
JH-41 5M Normal Children logarithmic visual chart light box
Description
Specification: | |||||||
Type of chart: | Graphical | ||||||
Distance of testing: | 5m | ||||||
Range of testing: | from 4.0 to 5.3 | ||||||
Record of vision: | five points record,decimal record,fraction record | ||||||
Size: | 920*280*100mm |
Inquiry Us