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AC Powered, Plug-In
Carbon Monoxide Alarm

• Part Number 900-0056  • KN-COP-DP 

Description

The Kidde 900-0056 is an AC powered, plug-in carbon
monoxide alarm that can be installed easily in any stan-
dard wall outlet. The 900-0056 uses advanced technolo-
gy to monitor for carbon monoxide levels in your home
and features a Nighthawk

TM

, electrochemical sensor, 

the world’s most accurate carbon monoxide sensing 
technology*. The digital display feature allows for easy
viewing of carbon monoxide levels. 

Consumer Benefits

The Kidde 900-0056 AC powered, plug-in carbon
monoxide alarm provides you and your family a warning
signal against the dangers of carbon monoxide levels in
your home.  This alarm is easily installed in any of your
AC wall outlets.  The digital display feature allows for
easy viewing of carbon monoxide levels from 30-999PPM
(parts per million).  The 900-0056 is UL listed and offers a
5-year limited warranty.

Features and Benefits

• Digital Display

– Displays the level of carbon monoxide 

the unit is sensing.  The unit updates this reading every 
15 seconds.

• Peak Level Button

– Displays the peak CO level 

recorded by the alarm since it was last reset or unplugged.

• Test Button

– Tests unit’s electronic circuitry and horn 

and resets the unit during alarm.

*Based on accuracy claims of major manufacturers

NIGHTHAWK

TECHNOLOGY

World’s Most Accurate

Carbon Monoxide Alarm*

TM

Digital Display

Displays the level of carbon monoxide the unit is sensing.  
The unit updates this reading every 15 seconds.

Test/Reset Button

Tests units electronic circuitry and horn and resets 
the unit during alarm.

Peak Level Button

Displays the peak CO level recorded by the alarm since
it was last reset or unplugged.

Alerts user to replace CO alarm
after 7 years of operation

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FEATURE:

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