Click here to view the pdf catalogue
LEA GRATINGS are for preferential looking test
situations with infants or children and adults
with disabilities to determine detection acuity.
Grating levels printed on each handle are: 0.25,
0.5, 1.0, 2.0, 4.0, and 8.0 cpcm (cycles per
centimeter of surface). Includes instructions
and storage case. 4 paddles 8″ (20 cm) in
diameter.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 253300