The D1257RB Fire Annunciator is typically installed at building entrances and in areas with unrestricted access. This SDI bus compatible device is compatible with the Bosch Security Systems, Inc. GV4, GV3, and GV2 control panels (firmware version 7.04 and higher). The user can advance or regress through a list of system events using two navigational keys. This enables a responding agency or those evacuating the building to identify the nature and location of the emergency quickly and safely. The annunciator’s built-in sounder enables it to be concealed during installation. Personnel are alerted to fire system events by audible tones, which also aid firefighters in locating the annunciator.
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