January 9, 2018The Alarm Interface RH2815E is used in a public address system to produce an alarm sound either by a short-circuit signal to trigger auto-alarm or by a manual pushbutton,it can output a built-in siren...view
January 9, 2018This active loudspeaker system produces good clear sound and acoustical clarity, suitable for AV applications such as meeting rooms, classrooms, multi-media rooms,etc.view
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