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HOW YOUR CO ALARM WORKS
The Cover Of Your CO Alarm
General Information
This CO alarm is designed to be hard-wired and
mounted on any standard size wiring junction
box, up to 4” diagonal size.
When fully powered, this CO alarm samples the
air and takes a new reading about every second.
A microchip inside the unit stores each reading,
and remembers the levels of CO it has been
exposed to over time. The unit goes into alarm
mode when it has been exposed to a “critical”
level of CO (measured in parts per million or
“ppm”) within a specified time (measured in
minutes).
General features:
This alarm features a
permanently installed sensor, a red indicator light
(LED), and an 85 dB alarm horn.
9V Battery Back-Up.
If AC power is interrupted,
the CO alarm will continue to operate, provided
the 9V battery is fresh and correctly installed.
Silence Feature.
The silence feature temporarily
quiets the alarm.
Malfunction Warning
This unit performs self-diagnostic tests
approximately every second. If the alarm
malfunctions, it should be replaced immediately.
1
4
3
2
1 Test/Silence Button
2 RED Indicator Light (LED)
3 Air Vents
4 (Behind the Cover) Alarm Horn: 85db
audible alarm for test, alarm, and unit
malfunction warning