The Entelechy Environmental cases as of 2-24-06 have been DISCONTINUED. The screen are still available. Replacement Screens: For the 100/200, item KP200 for Keypad, or item DS200 for Display screens and 48SCR for the 48. They are made of tough, puncture-resistant polyurethane membrane. Screens come with self-adhesive sides with a peel-off paper for easy installation.