S54390-C1-A1 SIEMENS ⍾ S54390C1A1

FDB291 - Base attachment

FDMK291 - Cover with key

FDMC291 - Protective cover

FDB221 - Detector base addressable

FDCI222 - Input module (4 inputs)

FDMG291 - Replacement glass

FDMH291-R - Housing red with key

FDL241-9 - ASA linear smoke detector unit

FDCIO222 - Input/output module (4 inputs and 4 outputs / 250 VAC)

FDME221 - Switching unit with direct alarm actuation

FDBZ291 - Designation plate

FDF241-9 - ASA flame detector unit (3 sensors)