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USER’S MANUAL

COMBINATION CARBON

MONOXIDE & SMOKE ALARM

IMPORTANT! PLEASE READ CAREFULLY AND SAVE.

This user’s manual contains important information about your Combination Carbon

Monoxide & Smoke 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.

Separate sensors to detect smoke and CO;

the two alarm systems work independently

Side access drawer for easy

battery replacement

Printed in Mexico

M08-152696-SCO5-US K1 8/16

CONFORMS TO UL STD

217 AND UL STD 2034 Model SCO5

Newell Brands Inc. (NYSE:NWL) •First Alert

is registered trademark of The First Alert Trust •3901 Liberty Street

Road, Aurora, IL 60504-8122 •Consumer Affairs: (800) 323-9005 •www.firstalert.com •www.brkelectronics.com

All First Alert

and BRK

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 fires.

Ionization technology is generally more sensitive than photoelectric technology at

detecting small particles, which tend to be produced in greater amounts by flaming fires,

which consume combustible materials rapidly and spread quickly. Sources of these

fires may include paper burning in a wastebasket, or a grease fire 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 fires, which may smolder for hours before bursting into flame. Sources

of these fires 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.

INTRODUCTION

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 flammable materials in proper containers; 4) Keep electrical

appliances in good condition and don’t overload electrical circuits; 5) Keep stoves, barbecue grills, fireplaces and

chimneys grease- and debris-free; 6) Never leave anything cooking on the stove unattended; 7) Keep portable

heaters and open flames, like candles, away from flammable 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 fire. Keep at least one working

fire extinguisher on every floor, and an additional one in the kitchen. Have fire escape ladders

or other reliable means of escape from an upper floor in case stairs are blocked.

BASIC SAFETY INFORMATION

• 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.

• This combination Smoke/Carbon Monoxide Alarm has two separate alarms. The CO

Alarm is not designed to detect fire 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 flames.

• 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.

FCC COMPLIANCE

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part

15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference

in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that the interference will not occur in a particular installation. If this equipment does

cause harmful interference to radio or television reception, which can be determined by turning the equipment

off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that of the receiver.

• Consult the dealer or an experienced radio or TV technician for help.

Changes or modifications to the product, not expressly approved by First Alert / BRK

Brands, Inc., could void the user’s authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two

conditions: (1) this device may not cause harmful interference, and (2) this device must accept

any interference received, including interference that may cause undesired operation.

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 floor, 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.

IN GENERAL, INSTALL COMBINATION SMOKE AND CARBON MONOXIDE ALARMS:

• On every level of your home, including finished 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 first-to-second floor 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

SUGGESTED AREAS FOR INSTALLING

SMOKE ALARMS, CO ALARMS, AND COMBO UNITS

SMOKE ALARM WITH

SILENCE FEATURE

CO ALARMS

BOTH, OR COMBINATION

SMOKE/CO ALARMS

SMOKE ALARMS

KEY:

Suggested locations are based on

NFPA recommendations (NFPA 72

for Smoke Alarms and NFPA 720 for

Carbon Monoxide Alarms). Always

refer to national and local codes

before beginning any installation.

In new construction AC and AC/DC smoke alarms MUST

be interconnected to meet NFPA recommendations.

• 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.

USING THE SILENCE FEATURES

Never remove the batteries to quiet an unwanted alarm. Removing the

batteries disables the alarm and removes your protection.

The Silence Feature is intended to temporarily silence the horn while you identify and correct the problem. Do

not use the Silence Feature in emergency situations. It will not correct a CO problem or extinguish a fire.

The Silence Feature can temporarily quiet an unwanted alarm for several minutes.

Press the Test/Silence button on the alarm cover for at least 3-5 seconds.

After the Test/Silence button is released, the Red LED blinks during the silence mode.

When the Smoke Alarm is Silenced When the CO Alarm is Silenced

The Smoke Alarm will remain silent for up to 15

minutes, then return to normal operation.

If the smoke has not cleared–or continues to

increase–the device will go back into alarm.

The CO alarm will remain silent for up to 4 minutes.

After 4 minutes, if CO levels remain potentially

dangerous the horn will start sounding again.

SILENCING THE LOW BATTERY WARNING

This silence feature can temporarily quiet the low battery warning “chirp” for

up to 8 hours. Press the Test/Silence button on the alarm cover.

Once the low battery warning “chirp” silence feature is activated, the unit continues to flash the

Green light once a minute for 8 hours. After 8 hours, the low battery “chirp” will resume. Replace

the batteries as soon as possible; this unit will not operate without battery power!

To deactivate this feature: Press the Test/Silence button again. The unit will go into Test Mode

and the low battery warning will resume (LED flashes and unit sounds “chirp” once a minute).

SILENCING THE END OF LIFE SIGNAL

This silence feature can temporarily quiet the End of Life warning “chirp” for up to 2 days.

You can silence the End of Life warning “chirp” by pressing the Test/Silence button. The horn

will chirp, acknowledging that the End of Life silence feature has been activated.

After approximately 2 days, the End of Life “chirp” will resume.

WHAT YOU NEED TO KNOW ABOUT CO

WHAT IS CO?

CO is an invisible, odorless, tasteless gas produced when fossil fuels do not burn completely,

or are exposed to heat (usually fire). Electrical appliances typically do not produce CO.

These fuels include: Wood, coal, charcoal, oil, natural gas, gasoline, kerosene, and propane.

Common appliances are often sources of CO. If they are not properly maintained, are improperly ventilated,

or malfunction, CO levels can rise quickly. CO is a real danger now that homes are more energy efficient.

“Air-tight” homes with added insulation, sealed windows, and other weatherproofing can “trap” CO inside.

SYMPTOMS OF CO POISONING

These symptoms are related to CO POISONING and should be discussed with ALL household members.

Mild Exposure: Slight headache, nausea, vomiting, fatigue (“flu-like” symptoms).

Medium Exposure: Throbbing headache, drowsiness, confusion, fast heart rate.

Extreme Exposure: Convulsions, unconsciousness, heart and lung failure.

Exposure to Carbon Monoxide can cause brain damage, death.

This CO Alarm measures exposure to CO over time. It alarms if CO levels are extremely high in a short period

of time, or if CO levels reach a certain minimum over a long period of time. The CO Alarm generally sounds an

alarm before the onset of symptoms in average, healthy adults. Why is this important? Because you need to

be warned of a potential CO problem while you can still react in time. In many reported cases of CO exposure,

victims may be aware that they are not feeling well, but become disoriented and can no longer react well enough

to exit the building or get help. Also, young children and pets may be the first affected. The average healthy

adult might not feel any symptoms when the CO Alarm sounds. However, people with cardiac or respiratory

problems, infants, unborn babies, pregnant mothers, or elderly people can be more quickly and severely

affected by CO. If you experience even mild symptoms of CO poisoning, consult your doctor immediately!

FINDING THE SOURCE OF CO AFTER AN ALARM

Carbon monoxide is an odorless, invisible gas, which often makes it difficult to locate the source of CO

after an alarm. These are a few of the factors that can make it difficult to locate sources of CO:

• House well ventilated before the investigator arrives.

• Problem caused by “backdrafting.”

• Transient CO problem caused by special circumstances.

Because CO may dissipate by the time an investigator arrives, it may be difficult to locate the source of CO.

BRK Brands, Inc. shall not be obligated to pay for any carbon monoxide investigation or service call.

POTENTIAL SOURCES OF CO IN THE HOME

Fuel-burning appliances like: portable heater,

gas or wood burning fireplace, gas kitchen

range or cooktop, gas clothes dryer.

Damaged or insufficient venting: corroded or disconnected

water heater vent pipe, leaking chimney pipe or flue, or

cracked heat exchanger, blocked or clogged chimney opening.

Improper use of appliance/device: operating

a barbecue grill or vehicle in an enclosed area

(like a garage or screened porch).

Transient CO Problems: “transient” or on-again-

off-again CO problems can be caused by outdoor

conditions and other special circumstances.

The following conditions can result in transient CO situations:

1. Excessive spillage or reverse venting of fuel appliances caused by outdoor conditions such as:

• Wind direction and/or velocity, including high, gusty winds. Heavy air in the

vent pipes (cold/humid air with extended periods between cycles).

• Negative pressure differential resulting from the use of exhaust fans.

• Several appliances running at the same time competing for limited fresh air.

• Vent pipe connections vibrating loose from clothes dryers, furnaces, or water heaters.

• Obstructions in or unconventional vent pipe designs which can amplify the above situations.

2. Extended operation of unvented fuel burning devices (range, oven, fireplace).

3. Temperature inversions, which can trap exhaust close to the ground.

4. Car idling in an open or closed attached garage, or near a home.

These conditions are dangerous because they can trap exhaust in your home. Since these

conditions can come and go, they are also hard to recreate during a CO investigation.

HOW CAN I PROTECT MY FAMILY

FROM CO POISONING?

A CO Alarm is an excellent means of protection. It monitors the air and sounds a loud alarm

before Carbon Monoxide levels become threatening for average, healthy adults.

A CO Alarm is not a substitute for proper maintenance of home appliances.

To help prevent CO problems and reduce the risk of CO poisoning:

• Clean chimneys and flues yearly. Keep them free of debris, leaves, and nests for proper air flow. Also, have

a professional check for rust and corrosion, cracks, or separations. These conditions can prevent proper air

movement and cause backdrafting. Never “cap” or cover a chimney in any way that would block air flow.

• Test and maintain all fuel-burning equipment annually. Many local gas or oil companies

and HVAC companies offer appliance inspections for a nominal fee.

• Make regular visual inspections of all fuel-burning appliances. Check appliances for excessive rust and

scaling. Also check the flame on the burner and pilot lights. The flame should be blue. A yellow flame

means fuel is not being burned completely and CO may be present. Keep the blower door on the furnace

closed. Use vents or fans when they are available on all fuel-burning appliances. Make sure appliances

are vented to the outside. Do not grill or barbecue indoors, or in garages or on screen porches.

• Check for exhaust backflow from CO sources. Check the draft hood on an operating

furnace for a backdraft. Look for cracks on furnace heat exchangers.

• Check the house or garage on the other side of shared wall.

• Keep windows and doors open slightly. If you suspect that CO is escaping into your home, open

a window or a door. Opening windows and doors can significantly decrease CO levels.

In addition, familiarize yourself with all enclosed materials. Read this manual in its

entirety, and make sure you understand what to do if your CO Alarm sounds.

REGULATORY INFORMATION FOR SMOKE/CO ALARMS

REGULATORY INFORMATION FOR CO ALARMS

WHAT LEVELS OF CO CAUSE AN ALARM?

Underwriters Laboratories Inc. Standard UL2034 requires residential CO Alarms to

sound when exposed to levels of CO and exposure times as described below. They

are measured in parts per million (ppm) of CO over time (in minutes).

UL2034 Required Alarm Points*:

• If the alarm is exposed to 400 ppm of CO, IT MUST ALARM BETWEEN 4 and 15 MINUTES.

• If the alarm is exposed to 150 ppm of CO, IT MUST ALARM BETWEEN 10 and 50 MINUTES.

• If the alarm is exposed to 70 ppm if CO, IT MUST ALARM BETWEEN 60 and 240 MINUTES.

*Approximately 10% COHb exposure at levels of 10% to 95% Relative Humidity (RH).

The unit is designed not to alarm when exposed to a constant level of 30 ppm for 30 days.

CO Alarms are designed to alarm before there is an immediate life threat. Since

you cannot see or smell CO, never assume it’s not present.

• An exposure to 100 ppm of CO for 20 minutes may not affect average, healthy

adults, but after 4 hours the same level may cause headaches.

• An exposure to 400 ppm of CO may cause headaches in average, healthy

adults after 35 minutes, but can cause death after 2 hours.

Standards: Underwriters Laboratories Inc. Single and Multiple Station carbon monoxide alarms UL2034.

According to Underwriters Laboratories Inc. UL2034, Section 1-1.2: “Carbon monoxide alarms covered by these

requirements are intended to respond to the presence of carbon monoxide from sources such as, but not limited

to, exhaust from internal-combustion engines, abnormal operation of fuel-fired appliances, and fireplaces. CO

Alarms are intended to alarm at carbon monoxide levels below those that could cause a loss of ability to react

to the dangers of Carbon Monoxide exposure.” This CO Alarm monitors the air at the Alarm, and is designed to

alarm before CO levels become life threatening. This allows you precious time to leave the house and correct

the problem. This is only possible if Alarms are located, installed, and maintained as described in this manual.

Gas Detection at Typical Temperature and Humidity Ranges: The CO Alarm is not formulated to

detect CO levels below 30 ppm typically. UL tested for false alarm resistance to Methane (500 ppm),

Butane (300 ppm), Heptane (500 ppm), Ethyl Acetate (200 ppm), Isopropyl Alcohol (200 ppm) and

Carbon Dioxide (5000 ppm). Values measure gas and vapor concentrations in parts per million.

Audible Alarm: 85 dB minimum at 10 feet (3 meters).

Printed in Mexico M08-152696-SCO5-US K1 8/16

REGULATORY INFORMATION FOR SMOKE ALARMS

RECOMMENDED LOCATIONS FOR SMOKE ALARMS

Installing Smoke Alarms in Single-Family Residences

The National Fire Protection Association (NFPA), recommends one Smoke Alarm on every floor,

in every sleeping area, and in every bedroom. In new construction, the Smoke Alarms must be

AC powered and interconnected. See “Agency Placement Recommendations” for details.

For additional coverage, it is recommended that you install a Smoke Alarm in all rooms, halls, storage areas,

finished attics, and basements, where temperatures normally remain between 40˚ F (4.4˚ C) and 100˚ F

(37.8˚ C). Make sure no door or other obstruction could keep smoke from reaching the Smoke Alarms.

More specifically, install Smoke Alarms:

• On every level of your home, including finished 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 long (12 meters), install a unit at each end.

• At the top of the first-to-second floor stairway, and at the bottom of the basement stairway.

Specific requirements for Smoke Alarm installation vary from state to state and from region

to region. Check with your local Fire Department for current requirements in your area. It is

recommended AC or AC/DC units be interconnected for added protection.

AGENCY PLACEMENT RECOMMENDATIONS

Standards: Underwriters Laboratories Inc. Single and Multiple Station Smoke Alarms 217.

NFPA 72 Chapter 29

“For your information, the National Fire Alarm and Signaling Code, NFPA 72, reads as follows:”

29.5.1* Required Detection.

29.5.1.1* Where required by other governing laws, codes, or standards for a specific type of

occupancy, approved single and multiple-station smoke alarms shall be installed as follows:

(1) *In all sleeping rooms and guest rooms

(2) *Outside of each separate dwelling unit sleeping area, within 21 ft (6.4 m) of any door

to a sleeping room, with the distance measured along a path of travel

(3) On every level of a dwelling unit, including basements

(4) On every level of a residential board and care occupancy (small facility), including

basements and excluding crawl spaces and unfinished attics

(5) *In the living area(s) of a guest suite

(6) In the living area(s) of a residential board and care occupancy (small facility)

(Reprinted with permission from NFPA 72

National Fire Protection Association, Quincy, MA 02269. This reprinted material is not the complete

and official position of the National Fire Protection Association, on the referenced subject which is

represented only by the standard in its entirety), (National Fire Alarm and Signaling Code

and NFPA

are registered trademarks of the National Fire Protection Association, Inc., Quincy, MA 02269).

California State Fire Marshal (CSFM)

Early warning detection is best achieved by the installation of fire detection equipment in all rooms and areas

of the household as follows: A Smoke Alarm installed in each separate sleeping area (in the vicinity, but outside

bedrooms), and Heat or Smoke Alarms in the living rooms, dining rooms, bedrooms, kitchens, hallways,

finished attics, furnace rooms, closets, utility and storage rooms, basements, and attached garages.

ABOUT SMOKE ALARMS

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) back-up: will operate if electricity fails, provided the

batteries are fresh and correctly installed. AC and AC/DC units must be installed by a qualified 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 these Smoke Alarms are designed to provide early warning of fires 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 specific units in new construction or in different areas of the home.

SPECIAL COMPLIANCE CONSIDERATIONS

This Smoke Alarm is suitable for use in apartments, condominiums, townhouses, hospitals, day

care facilities, health care facilities, boarding houses, group homes and dormitories provided a

primary fire detection system already exists to meet fire detection requirements in common areas

like lobbies, hallways, or porches. Using this Smoke Alarm in common areas may not provide

sufficient warning to all residents or meet local fire protection ordinances/regulations.

This Smoke Alarm alone is not a suitable substitute for complete fire detection systems in places housing

many people—like apartment buildings, condominiums, hotels, motels, dormitories, hospitals, health care

facilities, nursing homes, day care facilities, or group homes of any kind. It is not a suitable substitute for

complete fire detection systems in warehouses, industrial facilities, commercial buildings, and special-purpose

non-residential buildings which require special fire detection and alarm systems. Depending on the building

codes in your area, this Smoke Alarm may be used to provide additional protection in these facilities.

In new construction, most building codes require the use of AC or AC/DC powered Smoke Alarms only. In existing

construction, AC, AC/DC, or DC powered Smoke Alarms can be used as specified by local building codes. Refer

to NFPA 72 (National Fire Alarm and Signaling Code) and NFPA 101 (Life Safety Code), local building codes, or

consult your Fire Department for detailed fire protection requirements in buildings not defined as “households”.

HUD MAP PROGRAM

Certain HUD battery powered Smoke Alarm applications, especially those that fall under HUD

223(f) MAP (Multi-family Accelerated Processing), may require a 10 Year sealed tamper resistant

battery. This alarm does not meet that requirement. Substitute First Alert SA340B.

GENERAL LIMITATIONS OF SMOKE/CO ALARMS

This Smoke/CO Alarm is intended for residential use. It is not intended for use in industrial applications where

Occupational Safety and Health Administration (OSHA) requirements for Carbon Monoxide Alarms must be met.

The Smoke Alarm portion of this device is not intended to alert hearing impaired residents. Special purpose Smoke

Alarms should be installed for hearing impaired residents (CO Alarms are not yet available for the hearing impaired).

Smoke/CO Alarms may not waken all individuals. Practice the escape plan at least twice a year, making

sure that everyone is involved – from kids to grand- parents. Allow children to master fire escape planning and

practice before holding a fire drill at night when they are sleeping. If children or others do not readily waken to

the sound of the Smoke/CO Alarm, or if there are infants or family members with mobility limitations, make sure

that someone is assigned to assist them in fire drill and in the event of an emergency. It is recommended that you

hold a fire drill while family members are sleeping in order to determine their response to the sound of the Smoke/

CO Alarm while sleeping and to determine whether they may need assistance in the event of an emergency.

Smoke/CO Alarms cannot work without power. Battery operated units cannot work if the batteries

are missing, disconnected or dead, if the wrong type of batteries are used, or if the batteries are not

installed correctly. AC units cannot work if the AC power is cut off for any reason (open fuse or circuit

breaker, failure along a power line or at a power station, electrical fire that burns the electrical wires,

etc.). If you are concerned about the limitations of battery or AC power, install both types of units.

This Smoke/CO Alarm will not sense smoke or CO that does not reach the sensors. It will

only sense smoke or CO at the sensor. Smoke or CO may be present in other areas. Doors or other

obstructions may affect the rate at which CO or smoke reaches the sensors. If bedroom doors are

usually closed at night, we recommend you install an alarm device (Combination CO and Smoke Alarm,

or separate CO Alarms and Smoke Alarms) in each bedroom and in the hallway between them.

This Smoke/CO Alarm may not sense smoke or CO on another level of the home. Example:

This alarm device, installed on the second floor, may not sense smoke or CO in the basement.

For this reason, one alarm device may not give adequate early warning. Recommended minimum

protection is one alarm device in every sleeping area, every bedroom, and on every level of your

home. Some experts recommend battery powered Smoke and CO Alarms be used in conjunction with

interconnected AC powered Smoke Alarms. For details, see “About Smoke Alarms” for details.

Smoke/CO Alarms may not be heard. The alarm horn loudness meets or exceeds current UL standards

of 85 dB at 10 feet (3 meters). However, if the Smoke/CO Alarm is installed outside the bedroom, it

may not wake up a sound sleeper or one who has recently used drugs or has been drinking alcoholic

beverages. This is especially true if the door is closed or only partly open. Even persons who are awake

may not hear the alarm horn if the sound is blocked by distance or closed doors. Noise from traffic,

stereo, radio, television, air conditioner, or other appliances may also prevent alert persons from hearing

the alarm horn. This Smoke/CO Alarm is not intended for people who are hearing impaired.

The Alarm may not have time to alarm before the fire itself causes damage, injury, or death, since smoke

from some fires may not reach the unit immediately. Examples of this include persons smoking in bed,

children playing with matches, or fires caused by violent explosions resulting from escaping gas.

This Smoke/CO Alarm is not a substitute for life insurance. Though this Smoke/CO Alarm warns

against increasing CO levels or the presence of smoke, BRK Brands, Inc. does not warrant or imply

in any way that they will protect lives. Homeowners and renters must still insure their lives.

This Smoke/CO Alarm has a limited life. Although this Smoke/CO Alarm and all of its parts have passed many

stringent tests and are designed to be as reliable as possible, any of these parts could fail at any time. Therefore,

you must test this device weekly. The unit should be replaced immediately if it is not operating properly.

This Smoke/CO Alarm is not foolproof. Like all other electronic devices, this Smoke/CO Alarm has

limitations. It can only detect smoke or CO that reaches the sensors. It may not give early warning

of the source of smoke or CO is in a remote part of the home, away from the alarm device.

TROUBLESHOOTING GUIDE

IF THE ALARM... PROBLEM... YOU SHOULD...

Horn “chirps” about once per minute. Low battery warning. Install two new AA batteries*.

Horn does three “chirps” every minute; LED has 3 rapid flashes with “chirps”. 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.

The light flashes GREEN and the horn sounds 5 “chirps” every minute. 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 non-

emergency source like cooking smoke.

Silence Alarm using Test/Silence 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 any questions that cannot be answered by reading this manual, call Consumer Affairs: 1-800-323-9005.

LIMITED WARRANTY

BRK Brands, Inc., (“BRK”) the maker of First Alert

brand products warrants that for a period of seven years from the date of purchase, this product will be free from defects in material and

workmanship. BRK, at its option, will repair or replace this product or any component of the product found to be defective during the warranty period. Replacement will be made with a new or

remanufactured product or component. If the product is no longer available, replacement may be made with a similar product of equal or greater value. This is your exclusive warranty.

This warranty is valid for the original retail purchaser from the date of initial retail purchase and is not transferable. Keep the original sales receipt. Proof of purchase is required to obtain warranty

performance. BRK dealers, service centers, or retail stores selling BRK products do not have the right to alter, modify or any way change the terms and conditions of this warranty.

This warranty does not cover normal wear of parts or damage resulting from any of the following: negligent use or misuse of the product, use on improper voltage or current, use contrary to the operating instructions, disassembly,

repair or alteration by anyone other than BRK or an authorized service center. Further, the warranty does not cover Acts of God, such as fire, flood, hurricanes and tornadoes or any batteries that are included with this unit.

BRK shall not be liable for any incidental or consequential damages caused by the breach of any express or implied warranty. Except to the extent prohibited by applicable law, any implied warranty of merchantability or fitness

for a particular purpose is limited in duration to the duration of the above warranty. Some states, provinces or jurisdictions do not allow the exclusion or limitation of incidental or consequential damages or limitations on how

long an implied warranty lasts, so the above limitations or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights that vary from state to state or province to province.

How to Obtain Warranty Service

Service: If service is required, do not return the product to your retailer. In order to obtain warranty service, contact the Consumer Affairs Division at

1-800-323-9005. To assist us in serving you, please have the model number and date of purchase available when calling.

For Warranty Service return to: 1301 Joe Battle, El Paso, TX 79936

Battery: BRK Brands, Inc. make no warranty, express or implied, written or oral, including that of merchantability or fitness for any particular purpose with respect to battery.

Visit www.firstalert.com for more information.

For your records, please record:

Date Purchased: _______________________________

Where Purchased: ____________________________________________

Date Installed: ____________/____________Month/Year

Replace alarm 7 years after installation. Please write the date in the space provided:

_____________/____________Month/Year

The alarm will also provide an audible End-

of-Life Signal approximately 7 years after

installation to remind you to replace the unit.

The End-of-Life Signal can be silenced for up

to 2 days. Do not unplug the alarm or remove

the batteries until you get replacement.

WHERE THIS ALARM SHOULD NOT BE INSTALLED

DO NOT LOCATE THIS SMOKE/CO ALARM:

• In garages, furnace rooms, crawl spaces and unfinished 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,

humidifier, 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, unfinished 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 fluorescent lights. Electrical “noise” can interfere with the sensor.

• In “dead air” spaces. See “Avoiding 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 first 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

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, flathead screwdriver, hammer.

PARTS OF THIS SMOKE/CO ALARM

1. Test/Silence Button

2. Battery Compartment

3. Power/Smoke Alarm LED

4. CO Alarm LED

• 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.

If you want to lock the battery compartment, or lock the Smoke/CO Alarm to the

mounting bracket, please read the “Optional Locking Features” section.

1. Hold base firmly 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 flush 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 briefly when you install the

batteries. This is normal. The GREEN Light flashes about

every 60 seconds when the unit is receiving battery power.

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.

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 office 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: Duracell MN1500. These batteries are available at many local retail stores.

• Always use the exact batteries specified 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 -).

REGULAR MAINTENANCE (CONTINUED)...

• Please dispose of or recycle used batteries properly, following any local regulations. Consult your

local waste management authority or recycling organization to find an electronics recycling facility

in your area. DO NOT DISPOSE OF BATTERIES IN FIRE. BATTERIES MAY EXPLODE OR LEAK.

• 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.

Actual battery service life depends on the Smoke/CO Alarm and the environment in which

it is installed. All the batteries specified 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.

WEEKLY TESTING

• NEVER use an open flame of any kind to test this unit. You might accidentally damage

or set fire 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.

• DO NOT stand close to the Alarm when the horn is sounding. Exposure at close range may

be harmful to your hearing. When testing, step away when horn starts sounding.

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.

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 flashes 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 flashes 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.

IF YOUR SMOKE/CO ALARM SOUNDS

WHAT TO DO FIRST–IDENTIFY THE TYPE OF ALARM

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

IF THE CO ALARM SOUNDS

“ALARM-MOVE TO FRESH AIR”

If you hear the CO alarm horn and the CO red light is flashing, move

everyone to a source of fresh air. DO NOT remove the batteries!

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:

11. Operate the Test/Silence button.

12. Call your emergency services, fire department or 911. Write down

the number of your local emergency service here:

__________________________________________________________________

13. 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.

14. After following steps 1-3, if your CO Alarm reactivates within a 24-hour period, repeat steps 1-3 and call a

qualified appliance technician to investigate for sources of CO from fuel-burning equipment and appliances,

and inspect for proper operation of this equipment. If problems are identified during this inspection have

the equipment serviced immediately. Note any combustion equipment not inspected by the technician, and

consult the manufacturers’ instructions, or contact the manufacturers directly, for more information about

CO safety and this equipment. Make sure that motor vehicles are not, and have not, been operating in an

attached garage or adjacent to the residence. Write down the number of a qualified appliance technician here:

__________________________________________________________________

NOTE: A qualified appliance technician is defined as “a person, firm, corporation, or company that

either in person or through a representative, is engaged in and responsible for the installation, testing,

servicing, or replacement of heating, ventilation, air conditioning (HVAC) equipment, combustion

appliances and equipment, and/or gas fireplaces or other decorative combustion equipment.”

IF THE SMOKE ALARM SOUNDS

RESPONDING TO AN ALARM

• If the unit alarms and you are not testing the unit, it is warning you of a

potentially dangerous situation that requires your immediate attention. NEVER

ignore any alarm. Ignoring the alarm may result in injury or death.

• Never remove the batteries from a battery operated Smoke/CO Alarm to stop an

unwanted alarm (caused by cooking smoke, etc.). Removing batteries disables the

alarm so it cannot sense smoke, and removes your protection. Instead open a window

or fan the smoke away from the unit. The alarm will reset automatically.

• If the unit alarms get everyone out of the house immediately.

WHAT TO DO IN CASE OF FIRE

• Don’t panic; stay calm. Follow your family escape plan.

• Get out of the house as quickly as possible. Don’t stop to get dressed or collect anything.

• Feel doors with the back of your hand before opening them. If a door is cool, open it slowly. Don’t

open a hot door. Keep doors and windows closed, unless you must escape through them.

• Cover your nose and mouth with a cloth (preferably damp). Take short, shallow breaths.

• Meet at your planned meeting place outside your home, and do a

head count to make sure everybody got out safely.

• Call the Fire Department as soon as possible from outside. Give your address, then your name.

• Never go back inside a burning building for any reason.

• Contact your Fire Department for ideas on making your home safer.

Alarms have various limitations. See “General Limitations of Smoke/CO Alarms” for details.

OPTIONAL LOCKING FEATURES

The optional 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.

This Smoke Alarm has two separate locking features: one to lock the battery compartment, and the other to lock the Smoke

Alarm to the mounting bracket. You can choose to use either feature independently, or use them both.

Tools you will need: Needle-nose pliers or utility knife Standard flathead screwdriver.

Both locking features use locking pins, which are molded into the mounting bracket. Depending on which locking features you

use, remove one or both pins from the mounting bracket using needle-nose pliers or a utility knife.

To permanently remove either locking pin, insert a flathead 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

activate the battery and test the Smoke/CO Alarm.

15. Install the batteries 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.

16. Push and hold Test/Silence button until the alarm sounds.

If the unit does not alarm during testing, DO NOT lock the

battery compartment! Install new batteries and test again.

If the unit still does not alarm, replace it immediately.

17. Using needle-nose pliers or a utility knife, detach

one locking pin from the mounting bracket.

18. Push the locking pin through the hole near the battery

door latch on the back of the Smoke/CO Alarm.

TO LOCK THE MOUNTING BRACKET

1. Using needle-nose pliers or a utility knife, detach

one locking pin from the mounting bracket.

2. Insert the locking pin through the hole on the back

of the Smoke/CO Alarm as shown in the diagram.

3. When you attach the Smoke/CO Alarm to

the mounting bracket, the locking pin’s head

will fit into a notch on the bracket.

TO UNLOCK THE BATTERY COMPARTMENT

1. Remove the Smoke/CO Alarm

from the mounting bracket. If

the unit is locked to the bracket,

see the section “To Unlock

the Mounting Bracket.”

2. Insert a flathead 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.)

3. To relock the battery compartment,

close the battery door and

reinsert locking pin in lock.

4. Reattach the Smoke/CO Alarm

to the mounting bracket.

When replacing the batteries, always

test the Smoke/CO Alarm before

relocking the battery compartment.

TO UNLOCK THE MOUNTING BRACKET

1. Insert a flathead screwdriver into the rectangular cut-out

on the mounting bracket nearest to the locking pin.

2. Pry the Smoke/CO Alarm away from the bracket by

pushing up on the screwdriver and turning the Smoke/

CO Alarm counterclockwise (left) at the same time.