Used Silent Knight SD505-6AB Smoke Detector Base Only.

Silent Knight SD505-6AB Smoke Detector Base

Silent Knight SD505-6AB Smoke Detector Base - USED

Silent Knight SD505-aps smoke head - tested - interchanges with sd505-photo

SD505-6SB Silent Knight Sounder Base by Honeywell

Notifier Honeywell FSP-951R White Fire Alarm Photoelectric Smoke Detector NEW

SILENT KNIGHT SD505-6AB Addressable 6" smoke detector Base. Used