Spec Sheet Preview: Vandal-resistant panel and push button actuators Weather-resistant mylar speaker Fully enclosed flush back box with knockouts Hands-free loud speaker (or optional handset) Engraved solid aluminum and push button actuators Self-wiping push button switches Vandal-resistant Lexan® directories* CM491/CM492 used with speaker type remotes (with IA543 amplifier or equivalent) Tamper resistant mounting screws