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Product of the month January:
The new FFP2 mask with CE made in Germany - order your 20 pack now at the discounted price! :-)
- Order number: 82018
Mars number contrast charts (set of 3 charts - 82018) The MARS number chart set is a quick... more
Product information "Mars number contrast charts (set of 3), with numbers"
Mars number contrast charts (set of 3 charts - 82018)
The MARS number chart set is a quick solution to test contrast sensitivity.
Functional details
You can test contrast sensitivity between 0 and 2,0 logCS. With the three charts, you can test monocular (2 x) and binocular (1x). All charts come with optotypes in a different order. Testing distance: 40 cm.
Technical details
- 3 contrast sensitivity charts
- 3 transparent covers and a black case
- German and English manual
- Manual of the German FeV criteria
- Measurements of each chart: 23 x 36 x 0,5 cm (a bit larger than DIN A4)
- Optotypes: Numbers (version with letters see item number 81383)
- Norm data by age
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