B501AUS Detector Base
Plug-in base for analogue addressable detectors. Standard depth for 200 series detectors.
B501AP Base
Plug-in base for analogue addressable detectors and loop-powered devices. Extra depth to suit alarm devices such as addressable strobes.
B524RTE Detector Base
Plug-in base with change-over relay for analogue addressable detectors
WB-1AP Base Enclosure
Base Enclosure for Humid Environments, for use with Base Models: B501AP, B501, B401, B401R