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The Latching Alarm Indicator is activated after an
Alarm is exposed to alarm levels of smoke or carbon
monoxide. After smoke or CO levels drop below alarm
levels, the red smoke or CO LED will begin to flash
once every 5 seconds. For example, if CO initiated
the alarm, the red “CO” LED will flash. If the Smoke
Alarm initiated the alarm, the red “SMOKE” LED will
flash. It will continue to flash or “latch” until you clear
it using the Test/Silence button.
This feature helps emergency responders, investiga-
tors, or service technicians identify which unit(s) in
your home were exposed to alarm levels of smoke or
carbon monoxide. This can help investigators pinpoint
the source of smoke or CO.
Non-Interconnected or Stand-Alone Alarm
Latching Alarm Indicator shows that the unit was
exposed to alarm levels of smoke or CO.
Interconnected Alarms
Latching Alarm Indicator shows which Alarm(s) in the
series were exposed to alarm levels of smoke or car-
bon monoxide.
The Latching Alarm Indicator stays ON until you clear
it, so it can alert you to an alarm that occurred while
you were away from home, even though CO or smoke
present in the air has dropped below alarm levels.
