Siemens HFP-11 Intelligent Multi-sensor Fire Detector

NOTE: This part is discontinued by the manufacturer. Replace with: Siemens OP921 for Cerberus PRO & FireFinder XLS panels only. The Siemens HFP-11 Detector is a plug-in, two-wire, multi-sensor detector with both photoelectric and thermal inputs. Compatible with Fire Finder XLS and FS-250 series of control panels. COMPATIBLE BASES AND ACCESSORIES: — DB-11 Detector Mounting Base — DB-11E Detector Base (small) — AD2-P Air Duct Housing — AD2-XHR Air Duct Housing w/ Relay — ADBX-11 Audible Base — DB-X11RS Relay Base