For models: 1235, 440379
Smoke and Fire Alarm
User’s Guide
A.C. Wire-in Single and/or Multiple Station (24 Devices) Ionization Smoke
Alarm
Thank you for purchasing this smoke and fire alarm. It is an important
part of your family’s home safety plan. You can trust this product to
provide the highest quality safety protection. We know you expect noth-
ing less when the lives of your family are at stake.
For your convenience, write down the following information.
If you call our Consumer Hotline, these are the first questions
you will be asked.
Smoke Alarm Model Number (located on back of alarm):
Date Code (located on back of alarm). The National Fire Protection
Association and the manufacturer recommend replacing this alarm ten years
from the date code:
Date of Purchase:
Where Purchased:
LISTED
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This product is designed to detect products of combustion using the ionization technique. It contains
0.9 microcurie of Americium 241, a radioactive material. Distributed under U.S. NRC License No. 32-
23858-01E. Manufactured in compliance with U.S. NRC safety criteria in 10 CFR 32.27. The pur-
chaser is exempt from any regulatory requirements.
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For mobile home installation, select locations carefully to avoid thermal barriers that may form at the
ceiling. For more details, see MOBILE HOME INSTALLATION below.
When mounting an alarm on the ceiling, locate it at a minimum of 4” (10 cm) from the side wall (see
Diagram A).
WARNING! DISCONNECTING OR LOSS OF A.C. POWER WILL RENDER THE SMOKE ALARM
INOPERATIVE.
When mounting the alarm on the wall, use an inside wall with the top edge of the alarm at a mini-
mum of 4” (10 cm) and a maximum of 12” (30.5 cm) below the ceiling (see Diagram A).
ELECTRICAL RATING: 120 VAC, 60HZ, 80mA maximum per alarm (maximum 80mA for originating unit
with 24 devices interconnected).
Put smoke alarms at both ends of a bedroom hallway or large room if the hallway or room is more
than 30 feet (9.1 m) long.
IMPORTANT! READ ALL INSTRUCTIONS BEFORE INSTALLATION AND KEEP THIS MANUAL
NEAR THE ALARM FOR FUTURE REFERENCE.
Install Smoke Alarms on sloped, peaked or cathedral ceilings at or within 3 ft. (0.9m) of the highest
point (measured horizontally). NFPA states: “Smoke alarms in rooms with ceiling slopes greater than
1 foot in 8 feet (.3 m in 2.4 m) horizontally shall be located on the high side of the room” “A row of
detectors shall be spaced and located within 3 ft. (0.9 m) of the peak of the ceiling measured hori-
zontally” (see diagram “C”).
CONTENTS OF THIS MANUAL
1 -- RECOMMENDED LOCATIONS FOR SMOKE ALARMS
2 -- LOCATIONS TO AVOID
3 -- INSTALLATION INSTRUCTIONS
4 -- OPERATION AND TESTING
5 -- NUISANCE ALARMS
6 -- MAINTENANCE
7 -- LIMITATIONS OF SMOKE ALARMS
8 -- GOOD SAFETY HABITS
●Smoke Alarms for Minimum Protection
● Smoke Alarms for Additional Protection
● Ionization Type Smoke Alarms with
“Hush” Control or Photoelectric Type
9 -- NRC INFORMATION
DIAGRAM “B”
10 -- NFPA PROTECTION STANDARD 72
11 -- CALIFORNIA STATE FIRE MARSHAL REQUIRED INFORMATION
12 -- SERVICE AND WARRANTY
This smoke alarm uses an extremely small amount of radioactive element in the ionization chamber
(see Section 9). Do not try to repair the smoke alarm yourself. Refer to the instructions in Section 12
for service.
ANYWHERE
IN THIS AREA
DIAGRAM “A”
3 ft
3 ft
(0.9m)
(0.9m)
HORIZONTAL DISTANCE
FROM PEAK
DIAGRAM “C”
1. RECOMMENDED LOCATIONS FOR ALARMS
Locate the first alarm in the immediate area of the bedrooms. Try to protect the exit path as the
bedrooms are usually farthest from the exit. If more than one sleeping area exists, locate additional
alarms in each sleeping area.
MOBILE HOME INSTALLATION
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Mobile homes built in the past five to seven years have been designed to be energy efficient. Install
smoke alarms as recommended above (refer to RECOMMENDED LOCATIONS and Diagram A).
In mobile homes that are not well insulated compared to present standards, extreme heat or cold can
be transferred from the outside to the inside through poorly insulated walls and roof. This may create a
thermal barrier which can prevent the smoke from reaching an alarm mounted on the ceiling. In such
units, install the smoke alarm on an inside wall with the top edge of the alarm at a minimum of 4” (10
cm) and a maximum of 12” (30.5 cm) below the ceiling (see Diagram A).
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Locate additional alarms to protect any stairway as stairways act like chimneys for smoke and heat.
Locate at least one alarm on every floor level.
Locate an alarm in every bedroom.
Locate an alarm in every room where electrical appliances are operated (i.e. portable heaters or
humidifiers).
If you are not sure about the insulation in your mobile home, or if you notice that the outer walls and
ceiling are either hot or cold, install the alarm on an inside wall. For minimum protection, install at least
one alarm close to the bedrooms. For additional protection, see SINGLE FLOOR PLAN in Diagram B.
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Locate an alarm in every room where someone sleeps with the door closed. The closed door may
prevent the alarm from waking the sleeper.
WARNING: TEST YOUR SMOKE ALARM OPERATION AFTER R.V. OR MOBILE HOME VEHI-
CLE HAS BEEN IN STORAGE, BEFORE EACH TRIP AND AT LEAST ONCE A WEEK DURING
USE.
Smoke, heat, and combustion products rise to the ceiling and spread horizontally. Mounting the
smoke alarm on the ceiling in the center of the room places it closest to all points in the room.
Ceiling mounting is preferred in ordinary residential construction.
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NOTE: Use standard UL listed household wire (18 gauge or larger as required by local codes) avail-
able at all electrical supply stores and most hardware stores.
2. LOCATIONS TO AVOID
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In the garage. Products of combustion are present when you start your automobile.
Less than 4” (10cm) from the peak of an “A” frame type ceiling.
In an area where the temperature may fall below 40ºF or rise above 100ºF.
In dusty areas. Dust particles may cause nuisance alarm or failure to alarm.
In very humid areas. Moisture or steam can cause nuisance alarms.
In insect-infested areas.
MOUNTING INSTRUCTIONS
CAUTION: THIS UNIT IS SEALED. THE COVER IS NOT REMOVABLE!
1. Remove the trim ring from the back of the alarm by holding the trim ring and twisting the alarm in
the direction indicated by the “OFF” arrow on the alarm cover.
2. After selecting the proper smoke alarm location as described in Section 1 and wiring the A.C.
QUICK CONNECT harness as described in the WIRING INSTRUCTIONS, attach the trim ring to the
electrical box (see Figure 2).
Smoke alarms should not be installed within 3 ft. (.9 m) of the following: the door to a kitchen, the
door to a bathroom containing a tub or shower, forced air ducts used for heating or cooling, ceiling
or whole house ventilating fans, or other high air flow areas.
FIGURE 1 INTERCONNECT WIRING DIAGRAM
WIRES ON ALARM HARNESS
CONNECTED TO
Black
White
Red
Hot Side of A.C. Line
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Kitchens. Normal cooking may cause nuisance alarms. If a kitchen alarm is desired, it should have
an alarm silence feature or be a photoelectric type.
Neutral Side of A.C. Line
Interconnect Lines (Red Wires) of Other
Units in the Multiple Station Set up
Near fluorescent lights. Electronic “noise” may cause nuisance alarms.
3. INSTALLATION INSTRUCTIONS
WIRING REQUIREMENTS
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This smoke alarm should be installed on a U.L. listed or recognized junction box. All connections
should be made by a qualified electrician and must conform to article 760 of the U.S. National
Electrical Code, NFPA 72 and/or any other codes having jurisdiction in your area.
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The appropriate power source is 120 Volt A.C. Single Phase supplied from a non-switchable circuit
which is not protected by a ground fault interrupter.
WIRING INSTRUCTIONS FOR A.C. QUICK CONNECT HARNESS
CAUTION! TURN OFF THE MAIN POWER TO THE CIRCUIT BEFORE WIRING THE ALARM.
Optional Accessory
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For alarms that are used as single station, DO NOT CONNECT THE RED WIRE TO ANYTHING.
Leave the red wire insulating cap in place to make certain that the red wire cannot contact any
metal parts or the electrical box.
3. Use a screwdriver to punch out only the pair of holes in the trim ring that match your type of electri-
cal box or plaster ring. Mount the trim ring to the electrical box, using the appropriate holes. NOTE:
Use the circle, square and octagon markings near each mounting hole in the trim ring to help you
select the correct mounting holes (see Figure 2).
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When alarms are interconnected, all interconnected units must be powered from a single circuit.
4. Pull the A.C. QUICK CONNECTOR through the center hole in the trim ring and mount the ring, mak-
ing sure that the mounting screws are positioned in the small ends of the keyholes before tightening
the screws (see Figure 2).
A maximum of 24 Lifesaver devices may be interconnected in a multiple station arrangement. The
interconnect system should not exceed the NFPA interconnect limit of 12 smoke alarms and/or 18
alarms total (smoke, heat, etc.) With 18 alarms interconnected, it is still possible to interconnect up
to a total of 6 remote signaling devices and/or relay modules.
5. Plug the A.C. QUICK CONNECTOR into the back of the alarm (see Figure 3), making sure that the
locks on the connector snap into place. Then push the excess wire back into the electrical box
through the hole in the center of the trim ring.
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When mixing models which have battery backup (1275, 1275H, 1285, PE 120, HD135F) with mod-
els without battery backup, (1235, 120X, SL177I) be advised that the models without battery back-
up will not respond during an AC power failure.
6. If you have finished all the WIRING AND TRIM RING MOUNTING STEPS, you can install the alarm
on the trim ring. Alignment marks are provided on the side of the alarm and on the trim ring (see
Figure 4).
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The maximum wire run distance between the first and last unit in an interconnected system is 1000
feet.
7. Install the alarm on the trim ring with the indicating marks aligned and rotate the alarm in the direc-
tion of the “ON” arrow on the cover until the alarm snaps in place (see Figure 4).
Figure 1 illustrates interconnection wiring. Improper connection will result in damage to the alarm,
failure to operate, or a shock hazard.
Make certain alarms are wired to a continuous (non-switched) power line.
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8. Turn on the A.C. power. The green A.C. Power On Indicator should be lit when the alarm is operat-
ing from A.C. power.
WHEN UNITS ARE INTERCONNECTED, only the red LED of the alarm which senses the smoke or is
being tested (the originating unit) will flash rapidly. All other units in the interconnect system will sound
an alarm but their red LED’s will NOT flash rapidly.
TAMPER RESIST LOCKING PIN: To make your smoke alarm somewhat tamper resistant, a locking
pin has been provided with your alarm. Using this pin will deter children and others from removing the
alarm from trim ring. To use the pin, insert it into the hole in the side of the alarm after the alarm has
been installed on the trim ring (see Figure 5). NOTE: The tamper resist pin will have to be removed in
order to remove the alarm. Use a long nose pliers to pull the pin out of the hole. It is now possible to
remove the alarm from the trim ring.
The green LED has two modes of operation.
Standby Condition
Alarm Condition
The green LED will be steady on, indicating the presence of AC power.
This smoke alarm is equipped with an alarm memory which provides a
visual indication when an alarm has been activated. A flashing green LED
indicates the memory condition. The memory will remain activated until it is
reset by pushing the test button.
After installation, TEST your alarm by pressing and holding the test button for several seconds. This
should sound the alarm.
FIGURE 2. SELECT CORRECT MOUNTING HOLES ON TRIM RING
In an interconnected installation only the memory of the originating alarm will be activated.
TESTING: Test by pushing the test button on the cover and hold it down for a minimum of 2 seconds.
This will sound the alarm if the electronic circuitry and horn are working. If no alarm sounds, check the
fuse or circuit breaker supplying power to the alarm circuit. If the alarm still does not sound, the unit
may have other failure. DO NOT use an open flame to test your alarm, you could damage the alarm or
ignite combustible materials and start a structure fire.
TEST THE ALARM WEEKLY TO ENSURE PROPER OPERATION. Erratic or low sound coming from
your alarm may indicate a defective alarm, and it should be returned for service (see Section 12).
5. NUISANCE ALARMS
Rectangular Plaster Ring
Circular Plaster Ring
Octagonal Electrical Box
Smoke alarms are designed to minimize nuisance alarms. Cigarette smoke will not normally set off the
alarm, unless the smoke is blown directly into the alarm. Combustion particles from cooking may set
off the alarm if the alarm is located close to the cooking area. Large quantities of combustible particles
are generated from spills or when broiling. Using the fan on a range hood which vents to the outside
(non-recirculating type) will also help remove these combustible products from the kitchen.
4. OPERATION AND TESTING
OPERATION: The smoke alarm is operating once A.C. power is applied and testing is complete. When
the smoke alarm ionization chamber senses products of combustion, the horn will sound a loud (85db)
temporal alarm until the sensing chamber is cleared of smoke particles.
If the alarm does sound, check for fires first. If a fire is discovered, get out and call the fire department.
If no fire is present, check to see if one of the reasons listed in Section 2 may have caused the alarm.
Alignment marks
To remove A.C.
connector,
squeeze
locking arms
and pull
Tamper resistant
locking pin
6. MAINTENANCE
ALARM REMOVAL
IF TAMPER RESIST PIN HAS BEEN USED, REFER TO TAMPER RESIST LOCKING PIN IN
SECTION 3 FOR PIN REMOVAL INSTRUCTIONS.
You can remove the alarm from the trim ring by rotating the alarm in the direction of the “OFF” arrow
on the cover (See Section 3. Figure 4).
Install
Remove
To disconnect the A.C. power harness, squeeze the locking arms on the sides of the Quick Connector
while pulling the connector away from the bottom of the alarm (see Section 3, Figure 3).
FIGURE 3.
FIGURE 4.
FIGURE 5.
LED INDICATORS: This smoke alarm is equipped with red and green LED indicators. The red LED is
located under the test button and has two modes of operation.
CLEANING YOUR ALARM.
YOUR ALARM SHOULD BE CLEANED AT LEAST ONCE A YEAR.
Standby Condition
Alarm Condition
The red LED will flash every 30-40 seconds to indicate that the smoke
alarm is operating properly.
When the alarm senses products of combustion and goes into alarm,
the red LED will flash rapidly (one flash per second). The rapid flashing
LED and temporal alarm will continue until the air is cleared.
To clean your alarm, remove it from the mounting bracket as outlined in the beginning of this section.
You can clean the interior of your alarm (sensing chamber) by using compressed air or a vacuum
cleaner hose and blowing or vacuuming through the openings around the perimeter of the alarm. The
outside of the alarm can be wiped with a damp cloth.
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After cleaning, reinstall your alarm and test your alarm by using the test button. Check that the green
LED is on. If cleaning does not restore the alarm to normal operation the alarm should be replaced.
8. GOOD SAFETY HABITS
DEVELOP AND PRACTICE A PLAN OF ESCAPE
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Make a floor plan indicating all doors and windows and at least two (2) escape routes from each
room. Second story windows may need a rope or chain ladder.
7. LIMITATIONS OF SMOKE ALARMS
WARNING: PLEASE READ CAREFULLY AND THOROUGHLY
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Have a family meeting and discuss your escape plan, showing everyone what to do in case of fire.
Determine a place outside your home where you all can meet if a fire occurs.
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NFPA 72 states: Life safety from fire in residential occupancies is based primarily on early notification
to occupants of the need to escape followed by the appropriate egress actions by those occupants.
Fire warning systems for dwelling units are capable of protecting about half of the occupants in
potentially fatal fires. Victims are often intimate with the fire, too old or young, or physically or men-
tally impaired such that they cannot escape even when warned early enough that escape should be
possible. For these people, other strategies such as protection-in-place or assisted escape or res-
cue are necessary.
Familiarize everyone with the sound of the smoke alarm and train them to leave your home when
they hear it.
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Practice a fire drill at least every six months. Practice allows you to test your plan before an emer-
gency. You may not be able to reach your children. It is important they know what to do.
WHAT TO DO WHEN THE ALARM SOUNDS
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Smoke alarms are devices that can provide early warning of possible fires at a reasonable cost;
however, alarms have sensing limitations. Ionization type alarms offer a broad range of fire sensing
capabilities but are better at detecting fast flaming fires than slow smoldering fires. Photoelectric
alarms sense smoldering fires better than flaming fires. Home fires develop in different ways and are
often unpredictable. Neither type of alarm (photoelectric or ionization) is always best, and a
given alarm may not always provide warning of a fire.
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Leave immediately by your escape plan. Every second counts, so don’t waste time getting dressed
or picking up valuables.
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In leaving, don’t open any inside door without first feeling its surface. If hot, or if you see smoke
seeping through cracks, don’t open that door! Instead, use your alternate exit. If the inside of the
door is cool, place your shoulder against it, open it slightly and be ready to slam it shut if heat and
smoke rush in.
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A battery powered alarm must have a battery of the specified type, in good condition and installed
properly.
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Stay close to the floor if the air is smoky. Breathe shallowly through a cloth, wet if possible.
Once outside, go to your selected meeting place and make sure everyone is there.
Call the fire department from your neighbor’s home - not from yours!
A.C. powered alarms will not operate if the A.C. power has been cut off, such as by an electrical fire
or an open fuse.
Smoke alarms must be tested regularly to make sure the batteries and the alarm circuits are in good
operating condition.
Don’t return to your home until the fire officials say that it is all right to do so.
Smoke alarms cannot provide an alarm if smoke does not reach the alarm. Therefore, smoke
alarms may not sense fires starting in chimneys, wall, on roofs, on the other side of a closed door or
on a different floor.
There are situations where a smoke alarm may not be effective to protect against fire as stated in the
NFPA Standard 72. For instance:
a) smoking in bed
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If the alarm is located outside the bedroom or on a different floor, it may not wake up a sound sleep-
er.
b) leaving children home alone
c) cleaning with flammable liquids, such as gasoline
The use of alcohol or drugs may also impair one’s ability to hear the smoke alarm. For maximum
protection, a smoke alarm should be installed in each sleeping area on every level of a home.
Further information on fire safety can be obtained in a pamphlet titled “IN A FIRE SECONDS
COUNT” published by the NFPA, Batterymarch Park, Quincy, MA 02269
Although smoke alarms can help save lives by providing an early warning of a fire, they are not a
substitute for an insurance policy. Home owners and renters should have adequate insurance to
protect their lives and property.
9. NRC INFORMATION
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Install and maintain Fire Extinguishers on every level of the home and in the kitchen, basement and
garage. Know how to use a fire extinguisher prior to an emergency.
Ionization type smoke alarms use a very small amount of a radioactive element in the sensing chamber
to enable detection of visible and invisible combustion products. The radioactive element is safely con-
tained in the chamber and requires no adjustments or maintenance. This smoke alarm meets or
exceeds all government standards. It is manufactured and distributed under license from the U.S.
Nuclear Regulatory Commission.
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10. NFPA REQUIRED PROTECTION
The National Fire Protection Association’s Standard 72 provides the following information:
FIVE YEAR LIMITED WARRANTY
KIDDE Safety warrants to the original purchaser that the enclosed smoke alarm will be free from
defects in material and workmanship or design under normal use and service for a period of five
years from the date of purchase. The obligation of KIDDE Safety under this warranty is limited to
repairing or replacing the smoke alarm or any part which we find to be defective in material, work-
manship or design, free of charge to the customer, upon sending the smoke alarm with proof of
date of purchase, postage and return postage prepaid, to Warranty Service Department, KIDDE
Safety, 1394 South Third St., Mebane, NC 27302.
Smoke alarms shall be installed outside each separate sleeping area in the immediate vicinity of the
bedrooms and on each additional story of the family living unit, including basements and excluding
crawl spaces and unfinished attics. In new construction, a smoke alarm also shall be installed in each
sleeping room.
Smoke Detection - Are More Smoke Alarms Desirable? The required number of smoke alarms might
not provide reliable early warning protection for those areas separated by a door from the areas pro-
tected by the required smoke alarms. For this reason, it is recommended that the householder consid-
er the use of additional smoke alarms for those areas for increased protection. The additional areas
include the basement, bedrooms, dining room, furnace room, utility room, and hallways not protected
by the required smoke alarms. The installation of the smoke alarms in the kitchen, attic (finished or
unfinished), or garage is normally not recommended, as these locations occasionally experience con-
ditions that can result in improper operation.
This warranty shall not apply to the smoke alarm if it has been damaged, modified, abused or
altered after the date of purchase or if it fails to operate due to improper maintenance or inade-
quate A.C. or D.C. electrical power.
THE LIABILITY OF KIDDE SAFETY OR ANY OF ITS PARENT OR SUBSIDIARY CORPORATIONS
ARISING FROM THE SALE OF THIS SMOKE ALARM OR UNDER THE TERMS OF THIS LIMITED
WARRANTY SHALL NOT IN ANY CASE EXCEED THE COST OF REPLACEMENT OF SMOKE
ALARM AND, IN NO CASE, SHALL KIDDE SAFETY OR ANY OF ITS PARENT OR SUBSIDIARY
CORPORATIONS BE LIABLE FOR CONSEQUENTIAL LOSS OR DAMAGES RESULTING FROM
THE FAILURE OF THE SMOKE ALARM OR FOR BREACH OF THIS OR ANY OTHER WARRAN-
TY, EXPRESS OR IMPLIED, EVEN IF THE LOSS OR DAMAGE IS CAUSED BY THE COMPANY’S
NEGLIGENCE OR FAULT.
This equipment should be installed in accordance with the National Fire Protection Association’s
Standard 72 (NFPA, Batterymarch Park, Quincy, MA 02269).
NOTIFY YOUR LOCAL FIRE DEPARTMENT AND INSURANCE COMPANY OF YOUR SMOKE ALARM
INSTALLATION.
Since some states do not allow limitations on the duration of an implied warranty or do not allow
the exclusion or limitation of incidental or consequential damages, the above limitations or exclu-
sions may not apply to you. While this warranty gives you specific legal rights, you may also have
other rights which vary from state to state.
11. CAUTION (AS REQUIRED BY THE CALIFORNIA STATE FIRE MARSHAL)
“Early warning fire 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 of, but outside of the bedrooms), and heat or smoke alarms in the living rooms, dining rooms,
bedrooms, kitchens, hallways, attics, furnace rooms, closets, utility and storage rooms, basements and
attached garages.”
The above warranty may not be altered except in writing signed by both parties hereto.
QUESTIONS OR FOR MORE INFORMATION
12. SERVICE AND WARRANTY
If after reviewing this manual you feel that your smoke alarm is defective in any way, do not tamper with
the unit. Return it for servicing to: KIDDE Safety, 1394 South Third St., Mebane, NC 27302. (See
Warranty for in-warranty returns)
Call our Consumer Hotline at
1-800-880-6788
or contact us at our website at
Fyrnetics
1394 South Third Street
Mebane, NC 27302
1235-7220-00
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