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Combination Carbon Monoxide & Smoke Alarm

– 120VAC Direct Wire with Battery Backup  
– Alarm/Voice message warning system
– Permanent independent carbon monoxide and smoke alarm sensors

• Part Number 900-0114  • KN-COSM-IB

Description

The Kidde 900-0114 Combination Carbon Monoxide & Smoke
Alarm provides two important safety devices in a single unit. This
alarm includes a voice warning system that announces “Fire,
Carbon Monoxide, Low Battery or Smart Hush

TM

Activation”. The

voice alarm eliminates any confusion and clearly warns you and
your family of a smoke or carbon monoxide danger, or if your 
battery is in need of replacement. This technically advanced com-
bination alarm includes 9V battery backup providing protection
even during a power outage when many incidences occur. The
900-0114 is an easy to install alarm that is suitable for all living
areas and has a 5 year limited warranty.

Alarm Warnings

Fire: 

The red LED will flash and be accompanied by three long

alarm beeps followed by a verbal warning message “FIRE! FIRE!”.
The alarm will repeat pattern until smoke is eliminated.

Carbon Monoxide: 

Four short alarm beeps followed by a verbal

warning “WARNING! CARBON MONOXIDE!” This continues until
the unit is reset or the CO is eliminated.

Low Battery: 

One chirp followed by warning “LOW BATTERY”.

The red LED light will flash.  This pattern will continue every minute
for the first hour.  After the first hour the red LED light will flash
once every minute accompanied by the chirp sound.  The “LOW
BATTERY” warning will only sound once every fifteen minutes.

Voice Hush Indication: 

“HUSH ACTIVATED” and “HUSH 

CANCELLED” voice announcement 

Peak Level Memory: 

If the alarm had detected a CO level of

100ppm or higher when the Test/Reset button is pressed, the unit
will announce “CO PREVIOUSLY DETECTED” to warn of the CO
incident. 

Features and Benefits

• Smart Interconnect

TM

– Interconnects up to 24 Kidde devices

(of which 18 can be initiating).

• Battery Backup (9V battery included)

– Provides protection 

during power outages.

• Battery Lockout System

– Minimized risk of mounting unit without 

installation of battery.

• Alarm Tamper Resist

– Helps deter from tampering and theft.

• Adjustable Mounting Bracket

– Makes installation fast and easy.

• Peak Level Memory

– Announces “CO previously detected” if 

alarm had detected a CO level of 100ppm or higher since it was 
last reset.

• Smart Hush

TM

Feature

– Silences nuisance alarms for approximately 

10 minutes. (Smoke must be present before Smart Hush

TM

is 

activated)

• Ionization Sensor Technology

– Ideal for detecting fast flaming 

and other types of fires.

• Test Button Functions

– Tests the unit for proper operation
– Resets the Carbon Monoxide alarm
–  Peak Level memory

• Green LED

Illuminates to indicate the unit is receiving AC power.  Flashes every 
5 seconds to indicate battery only mode.  Flashes once per second 
(until reset) to indicate that the alarm sensed a smoke or CO hazard. 

Flashes every 2 seconds while the alarm is in HUSH

®

mode.

• Red LED

When a dangerous level of smoke or carbon monoxide is detected 
the red LED will flash. If the unit 
malfunctions, the red LED will flash 
and the unit will chirp every 
30 seconds.

NIGHTHAWK

TECHNOLOGY

World’s Most Accurate

Carbon Monoxide Alarm*

TM

Voice Warning

Warns of hazard by announcing “Fire, Fire” or “Warning, Carbon Monoxide”.

Peak Level Memory

Alerts user when the unit has detected CO concentrations of 100ppm or higher.

Smart Hush

TM

Silences the unit during nuisance alarm situations.
(Smoke must be present before hush is activated)

Two LED’s

• Red – Alarm mode.
• Green – Indicates that AC power is present.

Test/Reset Button Functions

• Tests the units electronics and resets the unit during CO alarm.
• Activates Hush Feature and Peak Level Memory.

Adjustable Mounting Bracket

Allows for easy installation and alignment.

*Based on accuracy claims of major manufacturers

Alerts user to replace CO alarm
after 7 years of operation

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