Manufactured by
Resideo Technologies, Inc.
Scottsdale, AZ 85254
www.resideo.com
© 2024 Resideo Technologies, Inc. All Rights Reserved.
These products are manufactured by Resideo Technologies, Inc. and its aliates.
INTRODUCTION
Thank you for choosing First Alert® for your Smoke and Carbon Monoxide Alarm needs. You
have purchased a state-of-the-art Smoke & Carbon Monoxide Alarm designed to help provide
you with early warning (Heads-Up) of a smoke and/or carbon monoxide danger. Please take
the time to read this manual and make the Smoke & Carbon Monoxide Alarm an integral part
of your family’s safety plan.
Alarm Features
• Voice Alerts with Heads-Up Warning: Friendly voice tells you what the danger is and its
location.
• Interconnect: When one alarm sounds, all compatible alarms sound.
• Mobile alerts whether home or away
Installation Notes
• This unit will not alert hearing impaired residents. It is recommended that you install
special units which use devices like ashing strobe lights to alert hearing impaired
residents.
• This unit must be powered by six (6) Huiderui 3V CR123A batteries.
• Test this Smoke 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.
• Install in accordance with installation instructions, applicable codes and ordinances and
in a manner acceptable to the authority having jurisdiction. Check with your local Fire
Department for current requirements in your area.
SC5 Wireless Smart Smoke & Carbon
Monoxide Alarm
SMCO600NV
Installation & Reference Manual
IMPORTANT! PLEASE READ CAREFULLY AND SAVE.
The warnings/limitations card and manual contains important information about your
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.
Para el manual del usuario en español, por favor visite rstalert.com
M08-0670-000 L2 7/24 Rev A
BASIC SAFETY INFORMATION
IMPORTANT!
• Dangers, Warnings, and Cautions alert you to important operating instructions or to potentially hazard-
ous situations. Pay special attention to these items.
• This smoke and co alarm is approved for use in single-family residences. It is NOT designed for
marine or RV use.
• This Alarm must have battery power to operate.
• This Smoke 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.
• 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!
• Installation of this unit must conform to the electrical codes in your area; Articles 210 and 300.3 (B) of
NFPA 70 (NEC), NFPA 72, NFPA 101; SBC (SBCCI); UBC (ICBO); NBC (BOCA); OTFDC (CABO), and any
other local or building codes that may apply. Wiring and installation must be performed by a licensed
electrician. Failure to follow these guidelines may result in injury or property damage.
• NEVER ignore any alarm. See “If Your Smoke 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.
• Never disconnect the power from an AC powered unit to stop an unwanted alarm. Doing so will
disable the unit and remove your protection. In the case of a true unwanted alarm open a window or
fan the smoke away from the unit.
• The alarm will reset automatically when it returns to normal operation. Never remove the batteries
from a battery operated unit to stop an unwanted alarm (caused by cooking smoke, etc.). Instead open
a window or fan the smoke away from the unit. The alarm will reset automatically.
! CAUTION!
• Connect this unit ONLY to other compatible units. See “How To Install This Smoke Alarm” for details.
Do not connect it to any other type of alarm or auxiliary device.
• Connecting anything else to this unit may damage it or prevent it from operating properly.
• Do not stand too close to the unit when the alarm is sounding. It is loud to wake you in an emergency.
Exposure to the horn at close range may harm your hearing.
• Do not paint over the unit. Paint may clog the openings to the sensing chambers and prevent the unit
from operating properly.
• Be aware of various situations against which the smoke alarm may not be effective, for example:
1. Fires where the victim is intimate with a aming initiated re; for example, when a person’s clothes
catch re while cooking;
2. Fires where the smoke is prevented from reaching the smoke alarm due to a closed door or other
obstruction;
3. Incendiary res where the re grows so rapidly that an occupant’s egress is blocked even with
properly located smoke alarms.
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. However, they do not provide interconnected functionality.
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
qualied electrician.
Smoke Alarms for solar or wind energy users and battery backup power systems: AC powered
Smoke Alarms should only be operated with true or pure sine wave inverters. Operating this Alarm
with most battery-powered UPS (uninterrupted 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 de-
signed 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 detect-
ing 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.
FIRE SAFETY TIPS
1. Follow safety rules and prevent hazardous situations:
2. Use smoking materials properly. Never smoke in bed.
3. Keep matches or lighters away from children;
4. Store ammable materials in proper containers;
5. Keep electrical appliances in good condition and don’t overload electrical circuits;
6. Keep stoves, barbecue grills, replaces and chimneys grease- and debris-free;
7. Never leave anything cooking on the stove unattended;
8. Keep portable heaters and open ames, like candles, away from ammable materials;
9. 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;
10. Have an escape plan and practice it regularly.
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 “Regu-
latory 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.
! WARNING!
This product is intended for use in ordinary indoor locations of family living units. It is not designed
to measure compliance with Occupational Safety and Health Administration (OSHA) commercial or
industrial standards.
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 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 and at the bottom of the basement stairs.
• For additional coverage, install Alarms in all rooms, halls, and storage areas, where tem-
peratures normally remain between 40˚ F and 100˚ F (4.4˚ C and 37.8˚ C).
• When installing on the ceiling, place the Alarm as close to the center as possible.
• 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.
• 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.
Smoke Alarm
One on every level and
in every bedroom
Fire Extinguisher
One on every level, plus
Carbon Monoxide
Alarm
One on every level and in
every bedroom
WHERE NOT TO INSTALL THIS ALARM
FOR BEST PERFORMANCE, IT IS RECOMMENDED YOU AVOID INSTALLING SMOKE/CO
ALARMS IN THESE AREAS:
• 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 10 feet (3 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 cur-
rents 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 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 air-conditioned crawl spaces, unnished attics, uninsulated or
poorly insulated ceilings, porches, and garages.
HOW TO INSTALL THIS ALARM
IMPORTANT!
This Smoke/CO Alarm is designed to be mounted on either the ceiling or wall (if allowed
by local codes). Read “Where to Install This Alarm” and “Where This Alarm Should Not Be
Installed” before you begin installation.
Tools you will need: a Drill and Philips head screwdriver.
The Mounting Bracket: Not pre-installed.
1. Mount the bracket to the ceiling or wall using
the provided screws (#6 x 3/4 in.[19 mm]).
2. Align the slots and hold the Alarm base
rmly.
3. Twist the mounting bracket clockwise to
fasten.
THE PARTS OF THIS SMOKE/CO ALARM
1. Mounting Bracket
2. Mounting Slots
3. SMCO600NV Alarm
4. Turn this way to remove from bracket
5. Turn this way to attach to bracket
6. Battery Compartment Door
5
4
6
3
1
2
2
• 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 Alarm. To avoid dead air
spaces, follow installation recommendations below.
On ceilings, install Smoke Alarms as close to the center of the ceiling as possible. If this is not
possible, install the Smoke 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 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 the rst Smoke Alarm within 3 feet (0.9
meters) of the peak of the ceiling, measured horizontally. Additional Smoke Alarms may be re-
quired depending on the length, angle, etc. of the ceiling’s slope. Refer to NFPA 72 for details
on requirements for sloped or peaked ceilings.
FOLLOW THESE SIMPLE STEPS
The basic installation of this Smoke/CO Alarm is similar whether you want to install one
Alarm, or interconnect more than one Alarm.
1. Install the mounting bracket to the wall or ceiling following the guidelines in the “Where to
Install” section. NOTE: Do not over tighten screws!
2. If not done so already, remove the battery tab to power the Alarm.
3. Position the base of the Alarm over the mounting bracket, and turn the Alarm clockwise
(right) until the unit is in place. If wall mounted, adjust unit so words are level.
4. If the Green power indicator light does not light, then recheck all battery connections.
See “Testing and Maintenance” section for the proper battery installation procedure. If
all batteries are properly installed and the Green power indicator still does not light, the
unit should be replaced immediately. NOTE: This light is not continuously lit to conserve
battery power.
5. Test each Alarm. Press and hold the Test/Silence button until the unit Alarms. When
testing a series of interconnected units, each unit must be tested individually. Make sure
all units alarm when tested.
