HAI Surface Speaker/Microphone Mod

The Model 28A00-1 and -2 is a speaker and microphone assembly that allows two-way communication with a central station after an alarm, paging and listening from an on-premises or remote phone, annunciation of alarm and zone by voice, and voice messaging*, when connected to a Two-Way Voice Module. It may be used outdoors in weather protected areas.
*Voice messaging not available on all systems

Two versions are available: Model 28A00-1 Surface Speaker/Microphone Module
Dimensions: 5 3/16" H x 5 3/16" W x 2 5/8 D

Model 28A00-2 Flush Speaker/Microphone Module
Dimensions: 4 1/2" H x 4 1/2" W x 1 1/2" D (Protrudes only 1/2" when flush mounted)