Dry film tester on EBay?

This looks like it might help out a high production business with the mil thickness but…?

http://cgi.ebay.com/NEW-ELCOMETER-DRY-FILM-COATING-THICKNESS-GAGE-256FN-T2_W0QQitemZ130038152948QQihZ003QQcategoryZ26260QQtcZphotoQQcmdZViewItem