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:
Detector Mounting Base
-- DB-11E Detector Base (small)
Air Duct Housing
-- AD2-XHR Air Duct Housing w/ Relay
-- ADBX-11 Audible Base