User's Manual
IMPORTANT! PLEASE READ
CAREFULLY AND SAVE.
The warnings/limitations card and
manual contains important information
about your smoke and carbon monoxide
alarm’s operation. If you are installing
this alarm for use by others, you must
leave this manual—or a copy of it—with
the end user.
Para el manual del usuario en
español, por favor visite rstalert.com
USER’S MANUAL
SMOKE & CARBON MONOXIDE ALARM
BATTERY POWERED
Model SMCO400
01
INTRODUCTION
Thank you for choosing First Alert
®
for your smoke and carbon monoxide alarm needs.
You have purchased a state-of-the art smoke alarm designed to provide you with early
warning of smoke danger.
BASIC SAFETY INFORMATION
IMPORTANT!
• Dangers, Warnings, and Cautions alert you to important operating instructions or to
potentially hazardous situations. Pay special attention to these items.
• This Smoke/CO Alarm is approved for use in single-family residences. It is NOT
designed for marine or RV use.
! CAUTION!
• This combination Smoke/Carbon Monoxide Alarm has two separate alarms. The CO
Alarm is not designed to detect re or any other gas. It will only indicate the presence
of carbon monoxide gas at the sensor. Carbon monoxide gas may be present in other
areas. The Smoke Alarm will only indicate the presence of smoke that reaches the
sensor. The Smoke Alarm is not designed to sense gas, heat or ames.
! WARNING!
• This Smoke/CO Alarm cannot operate without working batteries. Removing the
batteries for any reason, or failing to replace the batteries at the end of their service
life, removes your protection.
• NEVER ignore any alarm. See “If Your Smoke/CO Alarm Sounds” for more information
on how to respond to an alarm. Failure to respond can result in injury or death.
• The Silence Features are for your convenience only and will not correct a problem.
See “Using the Silence Features” for details. Always check your home for a potential
problem after any alarm. Failure to do so can result in injury or death.
• Test this Smoke/CO Alarm once a week. If the Alarm ever fails to test correctly, have it
replaced immediately! If the Alarm is not working properly, it cannot alert you to a problem.
• This product is intended for use in ordinary indoor locations of family living units. It
is not designed to measure CO levels in compliance with Occupational Safety and
Health Administration (OSHA) commercial or industrial standards. Individuals with
medical conditions that may make them more sensitive to carbon monoxide may
consider using warning devices which provide audible and visual signals for carbon
monoxide concentrations under 30 ppm. For additional information on carbon
monoxide and your medical condition contact your physician.
02
ABOUT SMOKE ALARMS
TYPES OF ALARMS
All these smoke alarms are designed to provide early warning of res if located, installed
and cared for as described in the user’s manual, and if smoke reaches the alarm. If
you are unsure which type of smoke alarm to install, refer the National Fire Protection
Association (NFPA) Standard 72 (National Fire Alarm and Signaling Code) and NFPA
101 (Life Safety Code). National Fire Protection Association, One Batterymarch Park,
Quincy, MA 02269-9101. Local building codes may also require specic units in new
construction or in different areas of the home.
Battery (DC) operated smoke alarms: Provide protection even when electricity fails,
provided the batteries are fresh and correctly installed. Units are easy to install, and do
not require professional installation.
AC powered smoke alarms: Can be interconnected so if one unit senses smoke, all
units alarm. They do not operate if electricity fails. AC with battery (DC) backup: will
operate if electricity fails, provided the batteries are fresh and correctly installed. AC and
AC/DC units must be installed by a qualied electrician.
Smoke/CO Alarms for Solar or Wind Energy users and battery backup power systems:
AC powered Smoke/CO Alarms should only be operated with true or pure sine wave
inverters. Operating this alarm with most battery-powered UPS (uninterruptible power supply)
products or square wave or “quasi sine wave” inverters will damage the alarm. If you are not
sure about your inverter or UPS type, please consult with the manufacturer to verify.
Smoke alarms for the hearing impaired: Special purpose smoke alarms should be
installed for the hearing impaired. They include a visual alarm and an audible alarm horn,
and meet the requirements of the Americans With Disabilities Act. Can be interconnected
so if one unit senses smoke, all units alarm.
Smoke alarms are not to be used with detector guards unless the combination has
been evaluated and found suitable for that purpose.
All First Alert
®
smoke alarms conform to regulatory requirements, including UL217
and are designed to detect particles of combustion. Smoke particles of varying
number and size are produced in all res.
Ionization technology is generally more sensitive than
photoelectric technology at detecting small particles, which
tend to be produced in greater amounts by aming res,
which consume combustible materials rapidly and spread
quickly. Sources of these res may include paper burning in a
wastebasket, or a grease re in the kitchen.
Photoelectric technology is generally more sensitive than
ionization technology at detecting large particles, which tend to
be produced in greater amounts by smoldering res, which may
smolder for hours before bursting into ame. Sources of these
res may include cigarettes burning in couches or bedding.
For maximum protection, use both types of smoke alarms on each level and in
every bedroom of your home.
03
INSTALLATION
WHERE TO INSTALL THIS ALARM
Minimum coverage for smoke alarms, as recommended by the National Fire
Protection Association (NFPA), is one smoke alarm on every oor, in every sleeping area,
and in every bedroom (See “Regulatory Information For Smoke Alarms” for details on
the NFPA recommendations).
For CO alarms, the National Fire Protection Association (NFPA) recommends that a
CO alarm should be centrally located outside of each separate sleeping area in the
immediate vicinity of the bedrooms. For added protection, install additional CO alarms
in each separate bedroom, and on every level of your home.
NOTE: For added protection, install an additional Smoke/CO alarm at least 15 feet (4.6
meters) away from the furnace or fuel burning heat source where possible. In smaller
homes or in manufactured homes where this distance cannot be maintained, install the
alarm as far away as possible from the furnace or other fuel burning source. Installing
the alarm closer than 15 feet (4.6 meters) will not harm the alarm, but may increase the
frequency of unwanted alarms.
To pair this alarm to a Ring or other compatible Z-Wave™ network, download the
appropriate App and follow the instructions to Set up Device or Connect Device.
IN GENERAL, INSTALL COMBINATION SMOKE AND CARBON MONOXIDE ALARMS:
• On every level of your home, including nished attics and basements.
• Inside every bedroom, especially if people sleep with the door partly or completely closed.
• In the hall near every sleeping area. If your home has multiple sleeping areas, install a
unit in each. If a hall is more than 40 feet (12 meters) long, install a unit at each end.
• At the top of rst-to-second oor stairs.
• At the bottom of the basement stairs.
• For additional coverage, install Alarms in all rooms, halls, and storage areas, where
temperatures normally remain between 40˚ F and 100˚ F (4.4˚ C and 37.8˚ C).
RECOMMENDED PLACEMENT:
• When installing on the wall, the top edge of Smoke Alarms should be placed
between 4 inches (102 mm) and 12 inches (305 mm) from the wall/ceiling line.
• When installing on the ceiling, place the alarm as close to the center as possible.
• In either case, install at least 4 inches (102 mm) from where the wall and ceiling
meet. See “Avoiding Dead Air Spaces” for more information.
NOTE: For any location, make sure no door or other obstruction could keep carbon
monoxide or smoke from reaching the alarm.
INSTALLING SMOKE/CO ALARMS IN MOBILE HOMES
For minimum security install one smoke/CO alarm as close to each sleeping area as
possible. For more security, put one unit in each room. Many older mobile homes
(especially those built before 1978) have little or no insulation. If your mobile home is not
well insulated, or if you are unsure of the amount of insulation, it is important to install
units on inside walls only.
WHERE NOT TO INSTALL THIS ALARM
DO NOT LOCATE THIS SMOKE/CO ALARM:
• In garages, furnace rooms, crawl spaces and unnished attics. Avoid extremely
dusty, dirty or greasy areas. Where combustion particles are produced. Combustion
particles form when something burns. Areas to avoid include poorly ventilated
kitchens, garages, and furnace rooms. Keep units at least 20 feet (6 meters) from
the sources of combustion particles (stove, furnace, water heater, space heater) if
possible. In areas where a 20-foot (6 meter) distance is not possible – in modular,
mobile, or smaller homes, for example – it is recommended the Smoke Alarm
be placed as far from these fuel-burning sources as possible. The placement
recommendations are intended to keep these Alarms at a reasonable distance from
a fuel-burning source, and thus reduce “unwanted” alarms. Unwanted alarms can
occur if a Smoke Alarm is placed directly next to a fuel-burning source. Ventilate
these areas as much as possible.
• Within 5 feet (1.5 meters) of any cooking appliance. In air streams near kitchens. Air
currents can draw cooking smoke into the smoke sensor and cause unwanted alarms.
• In extremely humid areas. This Alarm should be at least 10 feet (3 meters) from a
shower, sauna, humidier, vaporizer, dishwasher, laundry room, utility room, or other
source of high humidity.
• In direct sunlight.
• In turbulent air, like near ceiling fans or open windows. Blowing air may prevent CO
or smoke from reaching the sensors.
• In areas where temperature is colder than 40˚ F (4.4˚ C) or hotter than 100˚F
(37.8˚ C). These areas include non-airconditioned crawl spaces, unnished attics,
uninsulated or poorly insulated ceilings, porches, and garages.
• In insect infested areas. Insects can clog the openings to the sensing chamber.
• Less than 12 inches (305 mm) away from uorescent lights. Electrical “noise” can
interfere with the sensor.
• In “dead air” spaces.
AVOIDING DEAD AIR SPACES
“Dead air” spaces may prevent smoke from reaching the smoke/CO alarm. To avoid
dead air spaces, follow installation recommendations below.
On ceilings, install smoke/CO alarms as close to the center of the ceiling as possible.
If this is not possible, install the smoke/CO alarm at least 4 inches (102 mm) from the
wall or corner.
For wall mounting (if allowed by building codes), the top edge of smoke/CO alarms
should be placed between 4 inches (102 mm) and 12 inches (305 mm) from the wall/
ceiling line, below typical “dead air” spaces.
On a peaked, gabled, or cathedral ceiling, install rst smoke/CO alarm within 3 feet
(0.9 meters) of the peak of the ceiling, measured horizontally. Additional smoke/CO
alarms may be required depending on the length, angle, etc. of the ceiling’s slope.
Refer to NFPA 72 for details on requirements for sloped or peaked ceilings.
HOW TO INSTALL THIS ALARM
IMPORTANT!
This combination Smoke/CO alarm was designed to be mounted on the ceiling or wall.
It is not a tabletop device. You must install this device on the ceiling or wall as outlined
below. Read “Where To Install This Alarm” before starting.
Tools you will need: pencil, drill with 3/16” or 5mm drill bit, athead screwdriver, hammer.
THE PARTS OF THIS SMOKE/CO ALARM
1
Test/Silence Button
2
Battery Compartment
3
Power/Smoke Alarm LED
4
CO Alarm LED
! CAUTION!
• Do not connect this unit to any other alarm or auxiliary device. It is a single-station
unit that cannot be linked to other devices. Connecting anything else to this unit
may prevent it from working properly.
• Do not install this unit over an electrical junction box. Air currents around junction boxes
can prevent smoke from reaching the sensing chamber and prevent the unit from
alarming. Only AC powered units are intended for installation over junction boxes.
FOLLOW THESE SIMPLE STEPS
1. Hold base rmly and twist the mounting bracket counterclockwise (left) to separate
it from the unit.
2. Hold the mounting bracket against the ceiling (or wall) so the vertical mounting slot
is aligned in the 12 o’clock position and trace around the inside of the mounting
slots (vertical and horizontal mounting).
3. Put the unit where it won’t get covered with dust when you drill the mounting holes.
4. Using a 3/16” (5 mm) drill bit, drill a hole through the center of the oval outlines you traced.
5. Insert the plastic screw anchors (in the plastic bag with screws) into the holes. Tap
the screw anchors gently with a hammer, if necessary, until they are ush with the
ceiling or wall.
6. Line the mounting bracket up over the plastic screw anchors.
7. Screw the mounting bracket to the ceiling or wall through the mounting slots using
the two screws provided.
8. Before attaching the alarm to the bracket,
insert the two (2) AA batteries (included)
into the battery compartment. Match the
terminals on the end of the battery with the
terminals on the unit. Match “+” to “+” and
“-” to “-.” If the batteries are not fully inserted,
the unit cannot receive battery power.
NOTE: The unit may beep briey when
you install the batteries. This is normal. The
GREEN Light ashes about every 60 seconds
when the unit is receiving battery power.
! WARNING!
The battery door will resist closing unless batteries are installed. This warns you the unit
will not operate without batteries.
9. Attach the smoke/CO alarm to the
mounting bracket. Line up the guides on
the alarm’s base with the guides on the
mounting bracket. When guides are lined
up, turn the base clockwise (right) until it
snaps into place.
NOTE: Once the smoke/CO alarm is
snapped onto the mounting bracket, you
can rotate the smoke/CO alarm to adjust
the alignment.
10. Test the smoke/CO alarm. See “Weekly Testing” for details.
OTHER Z-WAVE SYSTEMS
This product can be operated in any Z-Wave network with other Z-Wave certied
devices from other manufacturers. All non-battery operated nodes within the network
will act as repeaters regardless of the vendor to increase the reliability of the network.
ADDING ALARM
1. Slide battery door open.
2. Insert batteries checking the correct orientation.
3. Press and hold the test button with your nger or thumb. Keep it held down as you
slide the battery drawer closed. You may then release the button.
NOTE: Use only your nger or thumb on the test button. The use of any other
instrument is strictly prohibited.
REMOVING ALARM
1. Slide battery door open.
2. Remove and re-insert batteries checking the correct orientation.
3. Press and hold the test button with your nger or thumb. Keep it held down as you
slide the battery drawer closed. You may then release the button.
NOTE: Use only your nger or thumb on the test button. The use of any other
instrument is strictly prohibited.
• The alarm will remain awake for 30 seconds on inclusion.
RESETTING ALARM
4. If the device is powered up with the test button held down for 10+ seconds, the
device will reset all Z-Wave settings and leave the network.
5. Upon completion of the Reset operation, the LED will glow and the horn will sound
for ~1 second.
6. Please use this procedure only when the network primary controller is missing or
otherwise inoperable.
NOTE: The device will not remain awake after resetting and will go into standby mode.
PROCEDURE TO MANUALLY WAKE-UP THE DEVICE
To manual wake-up the device, slide the battery door open wait for ~5 seconds and then slide
the battery drawer closed. Upon power-up, the device will send the wake-up notication.
DSK LOCATION ON THE PRODUCT
Device Specic Key (DSK) to be available at the time an S2 device is added to a Z-Wave
network. The QR code and the 5-digit DSK PIN can be found on the product nameplate
which is located on the back of the product. The Full DSK string can be found on the
product insert, available inside the product packaging.
For more information on Z-Wave specications, visit www.rstalert.com/zwaveinfo.
05
TESTING & MAINTENANCE
WEEKLY TESTING
! WARNING!
• NEVER use an open ame of any kind to test this unit. You might accidentally
damage or set re to the unit or to your home. The built-in test switch accurately tests
the unit’s operation as required by Underwriters Laboratories, Inc. (UL). NEVER use
vehicle exhaust! Exhaust may cause permanent damage and voids your warranty.
• If the alarm ever fails to test properly, replace it immediately. Products under
warranty may be returned to the manufacturer for replacement. See “Limited
Warranty” at the end of this manual.
! CAUTION!
It is important to test this unit every week to make sure it is working properly.
Using the test button is the recommended way to test this smoke/CO alarm.
04
ALARM FEATURES
• Be Notied While Away: Receive notications in the event of an emergency.*
• End-of-Life Warning: Lets you know when it’s time to replace.
You can test this Smoke/CO Alarm: Press and hold the Test/Silence button 3-5
seconds until unit starts to alarm.
During testing, you will see and hear the following sequence:
• The Horn will sound 3 beeps, pause, 3 beeps. The Power/Smoke LED ashes Red
and the CO LED will be Off.
• Next the Horn will sound 4 beeps, pause, 4 beeps. The Power/Smoke LED will be
Off and the CO LED ashes Red.
If the unit does not alarm, make sure the batteries are correctly installed, and test
again. If the unit still does not alarm, replace it immediately.
REGULAR MAINTENANCE
This unit has been designed to be as maintenance-free as possible, but there are a few
simple things you must do to keep it working properly.
• Test it at least once a week.
• Clean the smoke/CO alarm at least once a month; gently vacuum the outside of the
smoke/CO alarm using your household vacuum’s soft brush attachment. A can of
clean compressed air (sold at computer or ofce supply stores) may also be used.
Follow manufacturer instructions for use. Test the smoke/CO alarm. Never use
water, cleaners or solvents since they may damage the unit.
• If the smoke/CO alarm becomes contaminated by excessive dirt, dust and/or grime,
and cannot be cleaned to avoid unwanted alarms, replace the unit immediately.
• Relocate the unit if it sounds frequent unwanted alarms. See “Where This Alarm
Should Not Be Installed” for details.
CHOOSING A REPLACEMENT BATTERY:
Your smoke/CO alarm requires two standard AA batteries. The following batteries are
acceptable as replacements: Energizer E91, Duracell MN1500/LR6. These batteries are
available at many local retail stores.
! WARNING!
• Always use the exact batteries specied by this User’s Manual. DO NOT use
rechargeable batteries. Clean the battery contacts and also those of the device
prior to battery installation. Install batteries correctly with regard to polarity (+ and -).
• Please dispose of or recycle used batteries properly, following any local
regulations. Consult your local waste management authority or recycling
organization to nd an electronics recycling facility in your area. DO NOT
DISPOSE OF BATTERIES IN FIRE. BATTERIES MAY EXPLODE OR LEAK.
• Constant exposure to high or low temperatures or high humidity may reduce
battery life.
! WARNING!
• Keep battery out of reach of children. In the event a battery is swallowed,
immediately contact your poison control center, your physician, or the National
Battery Ingestion hotline at 202-625-3333 as serious injury may occur.
IMPORTANT!
Actual battery service life depends on the smoke/CO alarm and the environment in which
it is installed. All the batteries specied above are acceptable replacement batteries for
this unit. Regardless of the manufacturer’s suggested battery life, you MUST replace the
battery immediately once the unit starts “chirping” (the “low battery warning”).
To replace the batteries (without removing alarm from the ceiling or wall):
1. Open the battery compartment.
2. Press tabs A and B as shown in the
diagram and remove each battery.
3. Insert the new batteries, making sure they
snap completely into the battery compartment.
Match the terminals on the ends of the
batteries with the terminals on the unit.
4. Close the battery compartment, and then test
the unit by pressing the Test/ Silence button.
FIRE SAFETY TIPS
Follow safety rules and prevent hazardous situations: 1) Use smoking materials properly.
Never smoke in bed. 2) Keep matches or lighters away from children; 3) Store ammable
materials in proper containers; 4) Keep electrical appliances in good condition and don’t
overload electrical circuits; 5) Keep stoves, barbecue grills, replaces and chimneys
grease- and debris-free; 6) Never leave anything cooking on the stove unattended;
7) Keep portable heaters and open ames, like candles, away from ammable materials;
8) Don’t let rubbish accumulate. Keep alarms clean, and test them weekly. Replace alarms
immediately if they are not working properly. Smoke alarms that do not work cannot alert
you to a re. Keep at least one working re extinguisher on every level, and an additional
one in the kitchen. Have re escape ladders or other reliable means of escape from an
upper level in case stairs are blocked; 9) Have an escape plan and practice it regularly.
06
IF THE SMOKE ALARM SOUNDS
IF THE CO ALARM SOUNDS
“ALARM-MOVE TO FRESH AIR”
If you hear the CO alarm horn and the CO red light is ashing, move
everyone to a source of fresh air. DO NOT remove the batteries!
! WARNING!
Actuation of your CO alarm indicates the presence of carbon monoxide (CO) which
can kill you. In other words, when your CO alarm sounds, you must not ignore it!
IF THE CO ALARM SIGNAL SOUNDS:
1. Operate the Test/Silence button.
2. Call your emergency services, re department or 911. Write down the number of
your local emergency service here:
___________________________________________________________________________
3. Immediately move to fresh air—outdoors or by an open door or window. Do a head
count to check that all persons are accounted for. Do not re-enter the premises, or
move away from the open door or window until the emergency services responder
has arrived, the premises have been aired out, and your CO alarm remains in its
normal condition.
Smoke Alarm
One on every
level and in
every bedroom
Carbon Monoxide
Alarm
One on every
level and in every
bedroom
Fire Extinguisher
One on every level,
plus kitchen and
garage
1
2
3
4
LOCKING FEATURES
The locking features are designed to discourage
unauthorized removal of the batteries or alarm.
It is not necessary to activate the locks in single-
family households where unauthorized battery or
alarm removal is not a concern.
These alarms have two separate locking
features: one to lock the battery compartment,
and the other to lock the alarm to the mounting
bracket. You can choose to use either feature
independently, or use them both.
Tools you will need: • Needle-nose pliers • Standard Flathead screwdriver.
Both locking features use locking pins, which are molded into the mounting
bracket. Using needle-nose pliers, remove one or both pins from the mounting
bracket, depending on how many locking features you want to use.
IMPORTANT!
To permanently remove either lock, insert a athead screwdriver between the
locking pin and the lock, and pry the pin out of the lock.
TO LOCK THE BATTERY COMPARTMENT
Do not lock the battery compartment until you have installed the battery and
tested the battery back-up.
1. Push and hold Test/Silence button until
the alarm sounds.
IMPORTANT!
If the unit does not alarm during
testing, DO NOT lock the battery
compartment! Install a new battery
and test again. If the Alarm still does
not alarm, replace it immediately.
2. Using needle-nose pliers, detach one locking
pin from the mounting bracket.
3. Push the locking pin through the hole near
the battery drawer on the back of the alarm.
TO UNLOCK THE BATTERY COMPARTMENT
1. Remove the alarm from the mounting bracket.
If the unit is locked to the bracket, see the
section “To Unlock the Mounting Bracket.”
2. Disconnect the power connector by gently
prying it away from the back of the alarm.
3. Insert a athead screwdriver under the head
of the locking pin, and gently pry it out of the
battery compartment lock. (If you plan to relock
the battery compartment, save the locking pin.)
4. To relock the battery compartment, close the battery door and reinsert locking
pin in lock.
5. Reconnect the power connector to the back of the alarm, reattach the smoke
alarm to the mounting bracket, and restore the power.
IMPORTANT!
When replacing the batteries, always test the alarm before relocking the battery compartment.
TO LOCK THE MOUNTING BRACKET
1. Using needle-nose pliers, detach one
locking pin from mounting bracket.
2. Insert the locking pin into the lock
located opposite from the battery
drawer as shown in the diagram.
3. When you attach the alarm to the
mounting bracket, the locking pin’s
head will t into a notch on the bracket.
TO UNLOCK THE MOUNTING BRACKET
1. Insert a athead screwdriver between
the mounting bracket pin and the
mounting bracket.
2. Pry the alarm away from the bracket
by turning both the screwdriver and
the alarm counterclockwise (left) at
the same time.
A
B
TROUBLESHOOTING GUIDE
IF THE ALARM... PROBLEM... YOU SHOULD...
Horn “chirps” and LED
ashes GREEN about
once every 45 seconds.
Low battery warning.
Install two new AA
batteries*.
Horn “chirps” 3 times
about every 45 seconds;
LED ashes GREEN
3 rapid ashes.
MALFUNCTION
SIGNAL. Device is not
working properly, and
needs to be replaced.
Units under warranty
should be returned
to manufacturer for
replacement. See
“Limited Warranty”
for details.
Horn “chirps” 5 times
about every 45 seconds;
LED ashes GREEN
5 rapid ashes.
END OF LIFE
SIGNAL. Alarm needs
to be replaced.
Immediately replace the
alarm.
CARBON MONOXIDE ALARM ONLY
CO Alarm goes back
into alarm 4 minutes
after you Silence it.
CO levels indicate a
potentially dangerous
situation.
IF YOU ARE FEELING
SYMPTOMS OF
CO POISONING,
EVACUATE your home
and call 911 or the Fire
Department. Refer to “If
The CO Alarm Sounds”
for details.
CO Alarm sounds
frequently even though
no high levels of CO
are revealed in an
investigation.
The CO Alarm may be
improperly located.
Refer to “Where to
Install This Alarm”
for details.
Relocate your Alarm. If
frequent alarms continue,
have home rechecked for
potential CO problems.
You may be experiencing
an intermittent CO
problem.
SMOKE ALARM ONLY
Smoke Alarm sounds
when no smoke is
visible.
Unwanted alarm
may be caused by
nonemergency source
like cooking smoke.
Silence Alarm using
manual button; clean
the alarm’s cover with
a soft, clean cloth. If
frequent unwanted
alarms continue, relocate
your alarm. Alarm may
be too close to a kitchen,
cooking appliance, or
steamy bathroom.
*For a list of acceptable replacement batteries, see “Regular Maintenance.”
If you have questions that cannot be answered by reading this manual, call the
Customer Service Team at 1-800-323-9005
Type of alarm What You See and Hear
Carbon Monoxide (CO)
CO LED:
Flashes Red;
Horn:
4 beeps,
pause, 4 beeps, pause;
Power/
Smoke LED:
Off
Smoke
Power/Smoke LED: Flashes Red;
Horn: 3 beeps, pause, 3 beeps,
pause; CO LED: Off
Action What You Will See & Hear
Under Normal Operations
Horn: Silent; Power/Smoke LED:
Flash Green approx once every
45 seconds; CO LED: Off
When You Test the Alarm
A “chirp” and then Horn:
3 beeps,
pause, 3 beeps;
Power/Smoke LED:
Flashes Red in sync with horn;
CO LED:
Off;
and then Horn:
4 beeps, pause,
4 beeps;
Power/Smoke LED:
Off;
CO
LED:
Flashes Red in sync with horn
Battery Becomes Low
Horn: Chirp 1x approx every
45 seconds; Power/Smoke LED:
Flashes Green in sync with horn;
CO LED: Off
Low Battery Signal is Silenced
(for up to 8 hours)
Horn: Silent; Power/Smoke LED:
Flashes Green 1x approx every
45 seconds; CO LED: Off
Alarm is Not Operating Properly
(Malfunction Signal)
Horn: Chirp 3x approx every
45 seconds; Power/Smoke LED:
Flashes Green in sync with horn;
CO LED: Off
Alarm Has Reached End of Life
Horn: Chirp 5x approx every
45 seconds; Power/Smoke LED:
Flashes Green in sync with horn;
CO LED: Off
End of Life Signal is Silenced
(for up to 2 days, 14 total)
Horn: Silent; Power/Smoke LED:
Flashes Green 5x approx every
45 seconds; CO LED: Off
Smoke is Detected
Horn: 3 beeps, pause, 3 beeps;
Power/Smoke LED: Flashes Red in
sync with horn; CO LED: Off
Smoke Alarm is Silenced
(for up to 15 minutes)
Horn: Silent; Power/Smoke LED:
Flashes Red 3 times, pause, 3 times;
CO LED: Off
Carbon Monoxide is Detected
Horn: 4 beeps, pause, 4 beeps;
Power/Smoke LED: Off; CO LED:
Flashes Red in sync with horn
CO Silence Signal
(for up to 4 minutes)
Horn: Silent; Power/Smoke LED:
Off; CO LED: Flashes Red in 4 times,
pause, 4 times