The E-30-PT is designed to provide quick and reliable communication in noisier areas. The mic sensitivity is set to a low level until the TALK button is pressed then it is raised to a normal level. In this way, the E-30-PT assures that the called party's voice will be broadcast over the speaker. In applications where the background noise can be louder than the person calling, a handset type phone is recommended.
The E-30-PT-EWP shares all of the features of the E-30-PT in addition to Enhanced Weather Protection (EWP) for installation in harsh environments. EWP products feature rubber gaskets and boots, silicon sealed connections, gel-filled butt connectors, as well as urethane potted circuit boards with weather sealed, field-adjustable trim pots and DIP switches for easy on-site programming.