Material Chrome on OPAL
Overall Size 4 in. x 4 in. - 101.6mm x 101.6mm
Polarity Positive
Resolution 1 to 128 cy/mm

Based on:   NIST/NBS 1010A and ANSI/ISO Test Chart #2
  x $299.00

Additional Options
Wooden Storage Box (WSB-04) $125.00