3" speaker and electret condenser microphone mounted on the back of a 11 gauge stainless steel face plate. Contains a call button that can activate the alarming base station (ALA/DG Series) in addition to sound activation.A special built-in sound path protects both speaker (2W Power Rating) and microphone from abuse. Unit designed for correctional facilities. Security hardware included. Flush Mounted
3" speaker and electret condenser microphone mounted on the back of a 11 gauge stainless steel face plate. Contains a call button that can activate the alarming base station (ALA/DG Series) in addition to sound activation.A special built-in sound path protects both speaker (2W Power Rating) and microphone from abuse. Unit designed for correctional facilities. Security hardware included. Flush Mounted
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