The Honeywell HONBDA-BTTY-ANN-4 BBU External Annunciator is a Honeywell external status indicator designed to display the condition of a Battery Backup Unit in compatible systems. As an external annunciator, it provides on-site visual alerts for BBU status, helping personnel quickly assess backup power readiness and system health. The device carries the part number HONBDA-BTTY-ANN-4 and is intended for use within Honeywell installations that require an external annunciation of BBU status.
