Model-57CLEDMultiFunctionVisualAcuityChart
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multi-function led visual acuity chart
distance visual acuity chart --- Balance between red and green visual acuity chart
chart as the photo.
1.Test distance 5 meter
2.Power adapter : input AC 100-240V, output:12v 1200mA
3.Dimensions : 546mm x 383mm x 18mm
Normal production