The Model 28A00-2 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 (not available on all systems) when connected to a Two-Way Voice Module. It may be used outdoors in weather protected areas.
Dimensions: 5 3/16" H x 5 3/16" W x 2 5/8 D
Works with Lumina, Lumina Pro, Omni LT, Omni II, Omni IIe, or OmniPro II home control systems.