On Fri, 9 Jan 2004 16:51:18 +0000 (UTC), "Dave Jennings"
What type exactly, mains powered with capacitor backup are the better
type or you can get battery powered with a bell wire for a link and
all types in between.
Any electrical wholesaler and some sheds will have some flavour of
They also do battery interconnectable types; by the way
its alarms not detectors; latter used in commercial buildings, linked to panel.
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