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Smoke Alarm
The smoke alarm monitors the air for products of
combustion that are produced when some-thing is
burning or smouldering. When smoke particles in the
smoke sensor reach a specified concentration, the
alarm/voice message warning system will sound, and
be accompanied by the flashing red LED light. The
smoke alarm takes precedence when both smoke
and carbon monoxide are present.
This unit has a smoke sensor that uses the
ionisation technology. Life safety from fire in
residential occupancies is based primarily on early
notification to occupants of the need to escape,
followed by the appropriate egress actions by those
occupants. Fire warning systems for dwelling units are
capable of protecting about half of the occupants in
potentially fatal fires. Victims are often intimate with
the fire, too old or young, or physically or mentally
impaired such that they cannot escape even when
warned early enough that escape should be possible.
For these people, other strategies such as protection-in-
place or assisted escape or rescue are necessary.
• Smoke alarms are devices that can provide early
warning of possible fires at reasonable cost, however,
alarms have sensing limitations. Ionization type alarms
offer a broad range of fire sensing capabilities but are
better at detecting fast flaming fires than slow
smoldering fires. Photoelectric alarms sense smoldering
fires better than flaming fires. Home fires develop in
different ways and are often unpredictable. Neither
type of alarm (photoelectric or ionization) is
always best, and a given alarm may not always
provide warning of a fire.
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Smoke Alarm Features