EWP products feature foam rubber gaskets and boots, sealed connections, gel-filled butt connectors, as well as urethane or thermal plastic potted circuit boards with internally sealed, field-adjustable trim pots and DIP switches for easy on-site programmingNew Automatic Noise Canceling (ANC) feature for proper operation in noisy environmentsEnhanced Weather Protection (EWP), EWP products are designed to meet IP66 Ingress Protection Rating (DOD# 859)Meets ADA requirements for Emergency Phones: - Automaticall