The Siemens ABHW-4S Audible Detector Base is an intelligent supervised detector base. It provides six selectable tone patterns, two volume levels when used with compatible fire detectors and control panels. The ABHW-4S audible bases wired in the same device loop are fully synchronized with FD-UL detectors and also support RL-HC, RL-HW remote lamps.

Compatible for use with Siemens FireFinder XLS and (Model FC901) Cerberus PRO 50-point addressable FACPs.

ABHW-4S is fully compatible with all Siemens addressable detectors and recognizes the detector type automatically:

OP921 Optical Detector
HI921 Heat Detector
OH921 Optical / Heat Detector
OOH941 Dual-Optical Heat Detector
OOHC941 Dual-Optical Heat (w/ CO) Detector
HFP-11 ‘H’-Series Optical / Heat Detector
HFPO-11 ‘H’-Series Optical Detector
HFPT-11 ‘H’-Series Heat Detector