x-sense Link+ CO03D-W User manual

X-SENSE
CO03D-W
Wireless Interlinked Carbon Monoxide Alarm

This user manual contains important information regarding the operation of your X-Sense carbon monoxide alarm.
Ensure you read this user manual fully before installing and operating the alarm and store it in a safe place for future
reference. If you are installing this alarm for use by others, you must leave this manual (or a copy of it) with the end user.
Introduction
This device is a battery-powered wireless interlinked carbon monoxide (CO) alarm with an advanced electrochemical
sensor designed for domestic use. Please note that this device does not detect smoke, heat, flames, or anyhazardous gas
other than carbon monoxide, even though carbonmonoxide can be generated by fire. For this reason, you mustinstall
smoke alarms to provide an early warning of fire and to protectyou and your family from fire and its related hazards.
WARNING
THE INSTALLATION OF THE APPARATUS SHOULD NOT BE USED AS A SUBSTITUTE FOR PROPER
INSTALLATION, USE AND MAINTENANCE OF FUEL-BURNING APPLIANCES INCLUDING
APPROPRIATE VENTILATION AND EXHAUST SYSTEMS.
THIS APPARATUS IS TO BE INSTALLED BY A COMPETENT PERSON.
IT IS NOT TESTED FOR USE IN A CARAVAN OR BOAT.

Package Contents
1 ×CO Alarm
3 ×1.5 V AA Batteries
2 ×Screws
2 ×Anchor Plugs
1 ×User Manual
2 ×Carbon Monoxide Safety Stickers
Product Features
LCD Display
Fault/Low Battery Indicator (Yellow LED)
Alarm Indicator (Red LED)
Power Indicator (Green LED)
Buzzer
TEST/HUSH Button

TEST/HUSH Button
The TEST/HUSH button is used to test the unit's electronics and to silence the unit during an alarm. When testing the
alarm (which should be done weekly), press the test button and you will hear a short beep, indicating that the alarm has
entered the test mode. Please refer to the “Alarm Test” section for further information. The alarm will revert back to
standby mode after testing.
Note: After the test has begun, the alarm will sound, and the red LED will flash. This does NOT indicate that CO is
present. If you press the test button during an alarm state, the unit will enter silence mode.
CO Alarm Levels
This X-Sensecarbon monoxide alarm is programmed to sound an alarm at the following CO concentrations within the
time periods listed:
70 ppm for 60-240 minutes,
150 ppm for 10-50 minutes,
and 400 ppm for 4-15 minutes
When CO is detected and the alarm sounds, the CO concentration will be displayed on the LCD and a blue backlight will
be lit. The red LED will flash and the alarm will issue 4 short beeps, repeating the cycle every 5.8 seconds.
CO Concentration and Symptoms
The table below shows the effects of different levels of CO poisoning on the body:
Parts per million (PPM)
Effects on adults
100
Slight headache, nausea, fatigue (flu-like symptoms)
200
Dizziness and headache within 2-3 hours
400
Nausea, frontal headache, drowsiness, confusion and rapid
heart rate. Risk to life after over 3 hours of exposure
800
Severe headaches, convulsions, vital organ failures. Death
possible within 2-3 hours

WARNING
THIS DEVICE IS DESIGNED TO PROTECT INDIVIDUALS FROM ACUTE EFFECTS OF CARBON
MONOXIDE EXPOSURE. IT MAY NOT FULLY SAFEGUARD INDIVIDUALS WITH SPECIFIC MEDICAL
CONDITIONS. IF IN DOUBT, CONSULT A MEDICAL PRACTITIONER.
Low-Battery Warning
If the battery is low, the unit will chirp once, and the yellow LED indicator will flash every 60 seconds to indicate that
the battery needs replacement.
If you press the test button when there is a low battery, the low battery signal will temporarily stop for 10 hours.
End-of-Life Indication and Hush Control
Once the maximum lifetime of the alarm (10 years) is reached, the alarm will beep 3 times and the yellow LED indicator
will flash 3 times every 60 seconds. This end-of-life signal can be temporarily silenced for 22 hours by pressing the test
button.
This end-of-life silence feature can only be used for a total of 30 days. After 30 days, the end-of-life signal cannot be
silenced. During this end-of-life silence period, your alarm will continue to monitor for CO and provide protection as
usual.
To help identify the date to replace the alarm, write down the date of first operation on the dedicated label, located on the
side of the alarm.
Battery Installation
1. Twist counterclockwise and remove the mounting bracket from the base of the alarm.
2. Install 3 ×1.5 V AA batteries. When batteries are installed, the unit will beep once and the yellow, green, and red
LEDs will flash in sequence. “---,” and “0” will be displayed on the screen with a blue backlight. In 1-2 minutes, the
backlight will turn off and the green indicator will flash once every 60 seconds indicating that the device is
functioning properly.
3. Reattach the mounting bracket to the alarm by twisting it clockwise.

WARNING
CONSTANT EXPOSURE TO HIGH OR LOW TEMPERATURES AND HIGH HUMIDITY MAY REDUCE
BATTERY LIFE.
How to Set up and Interconnect Wireless Alarms
All X-Sense Link+wireless interlinked alarms contain a built-in RF module that enables you to wirelessly connect 2 or
more interlinked alarms and create an interlinked network. When one unit is triggered, all interconnected alarms will
sound. The X-Sense Link+ series contain wireless interlinked smoke alarms, wireless interlinked carbon monoxide
alarms, and wireless interlinked combination smoke and carbon monoxide alarms. This model is designed to be
wirelessly interlinked with other X-Sense Link+alarms, but is not designed to communicate with wireless interlinked
alarms from other manufacturers.
The X-Sense Link+wirelessinterlinked alarms in one multi-pack have already been interconnected, and the
alarms in each multi-pack have their own independent interlinked network. If you have more than one
multi-pack, you will need to connect them all to the same network. Choose one multi-pack as your base network
and connect the other multi-packs to it.
NOTE: The following instructions regarding wireless interconnection are applicable to the X-Sense Link+
wirelessinterlinked alarms only.
How to Interconnect
1. Make sure you only work with 2 units at a time, and make sure that they are both turned on to ensure successful
connection.
NOTE: Install the batteries correctly to turn on CO03D-W. To learn how to turn on different models of wireless
interlinked alarms, please refer to their specific user manuals for more details.
2. Quickly press the TEST/HUSH button on one of the 2 units 4 times; it will beep once and the red LED will flash
slowly, indicating it has entered pairing mode and is waiting for a new unit to be added. Quickly press the
TEST/HUSH button on the other unit twice; it will beep once and the red LED will flash rapidly, indicating it is
searching for a device to connect to.
3. After the search is successfulandan interconnected group is created, both units will beep once and automatically exit
the interconnection mode. At this point, both units will only flash once 60 seconds, indicating they are in normal
standby mode.
4. If you want to connect a third alarm to this group, first activate a new device according to its operating instructions,
andthen quickly press the TEST/HUSH button on either of the 2 previously interconnected units 4 times. This unit
will beep once, and the red LED will flash slowly, indicating it is ready to add a new device to the network. Next,
quickly press the TEST/HUSH button on the new unit twice, and the red LED will flash rapidly as it searches for a
network to connect to. After the third unit successfully joins the interconnected network, both units will beep once
and automatically exit the interconnection mode.

5. If you want to connect more units, simply repeat step 4.Up to 24 alarms can be interconnected this way. To ensure
that all alarms enter the same interlinked network, make sure you only work with 2 units at a time—one unit
enters the pairing mode and the other unit enters the searching mode.
6. Test the alarms according to the steps in the section “Alarm Test”.
Quickly press 4 times
Quickly press twice
RF
Hold down
NOTES
1. The alarm will enter the searching mode or the pairing mode for 60 seconds with the red LED flashing. After 60
seconds, repeat step 2 to connect the alarms. If needed, press the TEST/HUSH button once while the alarm is in
the searching mode or the pairing mode, and the red LED will stop flashing and the alarm will quit the pairing
mode to enter normal status.
2. Test all wireless alarms to ensure they are interconnected before installation.
3. A maximum of 24 wireless alarms can be interconnected on the same network.
4. The model can only be interconnected with other X-Sense Link+wireless interlinked alarms.

How to Disconnect
Quickly press the TEST/HUSH button 4 times; the alarm will beep once. Then, hold down the button until it beeps once
more to disconnect. After disconnecting, it can be reconnected to the same network, or added to a new network.
NOTE: The X-Sense Link+wirelessinterlinked alarms in one multi-pack have already been interconnected. To create
a new network, you will first need to disconnect each alarm individually in this multi-pack to avoid having them all
join the same network.
Alarm Test
Be sure to test your CO alarms when you turn them on for the first time, or if the group configuration has changed. In
addition to the weekly tests you should perform, it is recommended to test the alarm after returning from a long trip or
vacation.
If your X-Sense Link+CO03D-W is interconnected to other X-Sense wireless alarms, we recommend that every
individual CO alarm be tested during the weekly test.
Test a single CO alarm
Test all interconnected CO alarms
Action
Press the TEST/HUSH button.
Hold down theTEST/HUSH button.
Indication
The LCD will turn on and display
“---,” “PAS,” and then “0.”
The alarm will emit 2 sets of 4
quick beeps every 5.8 seconds.
The red LED will flash during the
audible signal.
After testing, the alarm will
automatically enter standby mode.
The initiatingunit will beep continuously with the red
LED flashing.
Other interconnected alarms in the network will
receive the signal after 5 seconds, then they will beep
continuously with the red and green LEDs flashing
successively. Release the test/hush button on the
initiating unit and all the units will stop testing.
The testing of the units should be completed within
3 minutes.
After testing, the units will automatically enter
standby mode.
NOTE: The test function accurately tests the alarm’s CO sensing circuit without the need totest with CO. If your CO
alarm fails to emit an audible test signal, refer to the troubleshooting guide at the end of this manual immediately.

Installation Positioning
Ideally, a carbon monoxide alarm should be installed in every room containing a fuel-burning appliance, and one in
every bedroom.
However, if the number of carbon monoxide alarm available is limited, the following guidelines should be considered
when choosing the best places to install an alarm(s):
If there is an appliance in a bedroom, a CO monitor should be installed.
Install an alarm in rooms containing a flueless or open-flued appliance.
Install an alarm where residents spend most of their time.
In a studio apartment, a CO alarm should be placed as far away from the cooking appliances as possible, but close
to where the person sleeps.
If the appliance is in a room not normally used (such as a boiler room), the CO alarm should be placed just outside
of this room so that the alarm can be heard more easily.
1. Installing a CO Alarm in a Room with a Fuel-Burning Appliance (See Figure 1 and Figure 2):
If mounted on a wall, the alarm should be installed at a height greater than the height of any door or window, but
should be at least 5.9 in (150 mm) below the ceiling.
If it is mounted on the ceiling, it should be at least 11.8 in (300 mm) from any wall or light fixture.
The CO alarm should have a horizontal distance between 3.3 feet (1 m) and 10 feet(3 m) from any potential CO
source.
If there is a partition in the room, the CO alarm should be installed on the same side of the partition as the potential
CO source.
In rooms with sloped ceilings, the CO alarm should be located at the high side of the room (see Figure 2).

Figure 1: Installation in a room with a fuel-burning appliance
Figure 1: In rooms with sloped ceilings, the CO alarm should be located at the high side of the room
2. Installing the CO Alarm in a Bedroom or Room Without a Fuel-Burning Appliance (See Figure

3):
Mount the CO alarm relatively close to the breathing zone of the occupant.
Install the alarm such that the three LED indicators are viewable when the occupant is near the alarm.
WARNING: Do not use the CO alarm on an intermittent basis or as a portable detector for the leakage of combustion
products from fuel burning appliances or chimneys.
Figure 3:Installation in a bedroom or other rooms without a fuel-burning appliance (installed at head level)
Locations to Avoid
Improper location can affect the sensitive electronic components in this alarm. To avoid causing damage to the unit, to
provide optimum performance and to prevent unnecessary nuisance alarms,do not locate CO alarms in the following
areas:
1. In garages or in any extremely dusty, dirty or greasy areas.
2. Where there is the possibility of smoke or fumes under normal operating circumstances.
3. In poorly ventilated kitchens, garagesand furnace rooms. Keep the CO alarms at least5 feet (1.5 m) from potential
smoke or fume sources (e.g. stoves, furnaces, water heaters, space heaters) if possible.
4. In areas where a 5-foot(1.5 m)distance from a potential smoke or fume source is not possible. In modular, mobile or
smaller houses, it is recommended the CO alarm be placed as far from any potential smoke or fume sources.
5. Within 5 feet (1.5 m) of any cooking appliance.
6. In extremely humid areas. This alarm should be at least 10 feet (3 m) from a bath or shower, sauna, humidifier,
vaporizer, dishwasher, laundry room, utilityroom or other sources of high humidity.
7. In areas where the temperature is colder than 40°F (4.4°C) or hotter than 100°F (37.8°C). For example,
non-air-conditioned crawl spaces, unfinished attics, uninsulated or poorly insulated ceilings, porches and garages.

8. Where the air is turbulent, such as near ceiling fans, heat vents, air conditioner vents, fresh air return vents, or open
windows. Excessive air flow may prevent any CO from reaching the sensors.
9. In direct sunlight.
10. Near large metal surfaces or where there are lots of cables or wires that can cause interference.
11. Near fluorescent lights, amateur radios, electrical equipment, or other units that may transmit an RF signal, as
electronic noise can cause false alarms.
Installation Method
NOTE: Before installation, it is recommended to test the interconnectedalarms in the rooms where you intend to
install them to ensure that they are within transmission range and that nothing will interfere with their
communication.
1. Twist to remove the mounting bracket. Hold the mounting bracket at the installation position with the flat side
facing toward the wall and the curved hole at the lower position.
2. Mark 2 screw holes according to the holes on the mounting bracket, then remove the bracket and drill the screw
holes to a depth of 1.18 in (30 mm) using a 1/4 in (Ø6.0 mm) drill bit.
3. Insert the anchor plugs into the holes, then tap them in with a hammer until their heads are flush with the wall.
4. Screw the mounting bracket to the wall using the provided screws or two 0.13 × 0.98 in (3.5 ×25 mm)countersunk
screws.
5. Attach the alarm to the mounting bracket and tighten by twisting clockwise.
6. Test the unit by pressing the TEST/HUSH button. Ensure the unit sounds in an alarm pattern.
LCD Display
While detecting CO, the LCD will display different indicators to help you understand what to do, as shown below：
Mode
LCD Display
LED Indicator
Audible Alarm
Remarks
Powering On
Runs through 8 cycles
(yellow/green/red indicator) in
sequence.
1 quick beep.
Make sure the battery is
installed correctly and the
device is turned on.
Standby Mode
The green indicator flashes once
every 60 seconds.
None.
None.

Alarm
Mode
Unit that
detects CO
and
initiates an
alarm
A CO concentration ranging from
30 to 999 ppm has been present for
a certain time period. The blue
backlight is lit, and the red LED
indicator flashes 4 times every 5.8
seconds.
4 quick beeps
repeating every
5.8 seconds.
Dangerous
CO concentration is detected,
and has reached the alarm
status. Please refer to "What
to Do When the CO Alarm
Sounds".
All other
interconne
cted units
in the
network
The red LEDflashes 4 times, then
the green LED flashes once every
5.8 seconds.
4quick beeps
repeating every
5.8 seconds.
Dangerous
CO concentration is detected
by the initiating unit, and has
reached the alarm status.
Please find the initiating unit
and refer to "What to Do
When the CO Alarm
Sounds".
The red and green LEDsflash 3
times sequentially every 1.5
seconds.
3 long beeps
every 1.5
seconds.
Dangeroussmoke
concentration is detected by
the initiating unit in the
network. Please find the
initiating unit and take action.
Unit that
detects CO
(alarm not
initiated)
A CO concentration level ranging
from 30 to 999 ppm has been
detected, but for less than the
allotted detection period. The
green LED indicator flashes once
every 60 seconds.
None.
Dangerous CO concentration
is detected, but has not
reached the alarm status.
Potentially dangerous CO
conditions exist.
Please search for the CO
source first. Open nearby
windows and doors, and
immediately move to fresh
air.
Unit that
detected
CO and
initiated an
alarm
The green indicator flashes once
every second for 5 seconds.
None.
Alarm cancellation: When
the CO concentration level
drops below the alarm
threshold, the alarm signal
will stop.
Test
Mode
Test a
single unit
2 sets of 4 red flashes.
2 sets of 4
quick beeps.
Press the TEST/HUSH
button.

Test all
interconne
cted units
The red LED indicator flashes
rapidly.
Continuous
beeping until
you release the
TEST/HUSH
button.
Initiatingunit.
Hold down the TEST/HUSH
button on one unit in the
network.
The red and green LEDsflash
sequentially.
Other interconnected alarms
in the network.
Silence Mode
The red LED indicator flashes 4
times every 5.8 seconds.
None.
CO silence mode: After 9
minutes, the unit will exit
silence mode.
The yellow LED indicator flashes
once every 60 seconds.
None.
Silence mode during low
battery: After 10 hours, the
unit will exit silence mode.
The yellow LED indicator flashes
3 times every 60 seconds.
None.
Silence mode during the
end of the cycle: After 22
hours, the unit will exit
silence mode.
The green LED indicator flashes 3
times.
None.
Exiting silence mode.
Low Battery
Display alternates between "Lb"
and the current CO level. The
yellowLED indicator flashesonce
every 60 seconds.
1 quick beep
every 60
seconds.
The batterymust be replaced
immediately.
Fault
The yellow LED indicator flashes
twice every 60 seconds.
2 beeps
every 60
seconds.
Please clean youralarm
and see if it is working
normally. If "Err"
continues
to display, the unit has
malfunctioned and must
be replaced immediately.
End of Life
The yellow LED indicator flashes 3
times every 60 seconds.
3 quick
beepsevery 60
seconds.
Replace the
unitimmediately.

Alarm Mode
X-Sense Link+wireless interlinked alarms can be interconnected such that any unit that senses dangerwill cause all other
units in the interconnected network to alarm.
1. If the Initiating Unit Is Triggered by CO:
When one CO alarm is triggered in the interconnected network, the unit will beep 4 times every 5.8 seconds, paired with
a red LED flashing indicator. Any other CO03D-W units in the network will follow suit—they will beep 4 times every
5.8 seconds, paired with a red LED that flashes 4 times first, followed by a green LED that flashes once with every beep.
When the CO concentration level drops below the alarm threshold, the alarm will cease.
2. If the Initiating Unit Is Triggered by Smoke:
When one smoke alarm is triggered in the interconnected network, the unit will beep 3 times, paired with a red LED that
flashes every 1.5 seconds. Any other CO03D-W units will follow suit—they will beep 3 times every 1.5 seconds, paired
with red and green LEDs flashing in succession.
NOTES
When one unit is triggered, other interconnected units will sound. If the smoke alarm and CO alarm are triggered in
the network at the same time, the alarm signal of the smoke alarm will take priority over that of the CO alarm.
This alarm has a relay function that extends the wireless interconnected network for wide detection coverage.
Silence Mode
Press the test button during an alarm to make the unit enter silence mode. If the CO concentration still exceeds the alarm
threshold, the unit will enter another alarm state. Otherwise, the unit will exit the silence mode after 9 minutes and
resume normal operation. If the CO concentration is above 300 ppm, the silence function cannot be enabled.
NOTES
You can silence all interconnected units by pressing the TEST/HUSH button on one of the units. If one unit is still
alarming, it is the initiating unit (the unit that detected danger); to silence all interlinked units, you must also press
the TEST/HUSH button on the initiating unit.
While interconnected, the initiating unit cannot be triggered again during the 9-minute silence duration. However,
all other interconnected units can be triggered again if they detect danger during the silence mode.
Technical Specifications
Power Supply
3 ×1.5 V AA batteries
Product Lifespan
About 10 years
Sensor Type
Electrochemical
Safety Standard
UL 2034
Operating Temperature
40 to 100°F (4.4 to 37.8°C)

Operating Relative Humidity
10-85% RH (non-condensing)
Alarm Loudness
≥ 85 dB at 3.28 ft (1 m)
Storage and Transport Conditions
-4 to 140°F (-20 to 60°C), 5% to 95% RH (non-condensing)
Silence Duration
About 9 minutes
Operating Frequency
915 MHz
Maximum Number of Interconnected
Units
24 wireless units (only compatible with X-Sense wireless
alarms)
Transmission Range
Over 820 ft (250 m) in open air
NOTES
1. Battery life is calculated on the current ratings in the standby mode with weekly testings. If its operation
mode changes to an alarming condition, the battery life will be decreased accordingly.
2. The CO alarm functions between 40 and 100°F (4.4 and 37.8°C). Prolonged exposure to temperatures outside
of this range can reduce battery life and affect accuracy. We do not recommend operating the device outside
of this range.
What to Do When the CO Alarm Sounds
1. Call emergency services as soon as possible.
2. Immediately move outside and make sure that everyone inside the house has evacuated the area or has access to
fresh air. Do not re-enter the house until it has been aired out and your alarm remains under normal condition. If it
is not possible to move outside, stay close to an open door/window until emergency service responders arrive.
3. After following steps 1–2 above, if your alarm reactivates within a 24 hour period, repeat steps 1–2 and call a
qualified appliance technician to investigate sources of CO from fuel-burning equipment and appliances, and
inspect for proper operation of this equipment.
4. If problems are identified during this inspection, have the equipment serviced immediately. Note any combustion
equipment that has not been inspected by the technician and consult the manufacturer’s 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.
Maintenance
To keep your alarm in good working order, you should adhere to the following steps.
1. Test the alarm once a week by pressing the TEST/HUSH button.
2. Vacuum the alarm cover once a month to remove any accumulated dust.

3. Never use detergents or solvents to clean the alarm. Chemicals can permanently damage or temporarily contaminate
the sensor.
4. Avoid spraying air fresheners, hair spray, paint or other aerosols near the alarm.
5. Do not paint the unit. Paint may clog the openings to the sensing chamber and prevent the unit from operating
properly.
WARNING: DO NOT TAMPER WITH THE APPARATUS, AS THERE IS A RISK OF ELECTRIC SHOCK
OR MALFUNCTION.
Battery replacement
Remove the old batteries and replace with three LR6 AA batteries (Golden Power GLR6A, Duracell MN1500, Gold
Peak 15A and Energizer E91 AA alkaline batteries are recommended) when the LCD displays an "Lb" icon and the
yellow LED blinks once every 60 seconds with the buzzer chirping. After changing the batteries, reinstall your alarm,
and test your alarm by pressing the TEST/HUSH button.
NOTE: Rechargeable batteries are not recommended for use with this device.
Limitations of CO Alarms
1. CO alarms may not wake up all individuals. If children or others do not readily awaken to the sound of the CO
alarm, or if there are infants or family members with mobility limitations, make sure that someone assists them in
the event of an emergency.
2. This CO alarm will not sense carbon monoxide that does not reach the sensor. This CO alarm will only detect CO
that reaches the sensor. CO may be present in other areas. Doors or other obstructions may affect the rate at which
CO reaches the CO alarm. For this reason, if bedroom doors are usually closed at night, it is recommended that you
install a CO alarm in each bedroom and in the hallway between them.
3. CO alarms may not sense CO on another level of the house. For example, a CO alarm on the second level, near the
bedrooms, may not sense CO in the basement. For this reason, one CO alarm may not give an adequate warning.
Complete coverage is recommended by placing CO alarms on each level of the house.
4. CO alarms may not be heard. The alarm buzzer noise level is over 85 dB at a distance of 3.28 feet (1 meter).
However, if the CO alarm is installed outside the bedroom, it may not awaken a sound sleeper or one who has
recently used drugs or has been drinking alcohol. This is especially true if the door is closed or only partially 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, stereos, radios, televisions, air conditioners, or other appliances may even prevent alert persons from
hearing the alarm horn. This CO alarm is not intended for people who are hearing impaired.
5. CO alarms are not a substitute for a smoke alarm. Although fire is a source of carbon monoxide, this CO alarm does
not sense smoke or fire. This CO alarm senses CO that may be escaping unnoticed from malfunctioning furnaces,

appliances, or other possible sources of incomplete combustion. The installation of a smoke alarm is required for an
early warning of fire.
6. CO alarms are not a substitute for life insurance. Though these CO alarms warn against increasing CO levels, we do
not warrant or imply in any way that they will protect lives from CO poisoning. Homeowners and renters must still
insure their lives.
7. CO alarms have a limited life. Although the 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 are strongly
recommended to test your CO alarm weekly.
8. CO alarms are not foolproof. Like all other electronic devices, CO alarms have limitations. They can only detect
CO that reaches their sensors. They may not give an early warning of rising CO levels if the CO is coming from a
remote part of the house, or is at some distance from the CO alarm.
Troubleshooting
PROBLEM
SOLUTION
Your alarm does not sound during testing.
Please ensure the batteries are properly installed in the
alarm.
Make sure you push thetest button firmly.
Check the installation positioning. The wireless signal might
be blocked or out of range.
The yellow LED flashesonce every 60 seconds with one
beep.
The battery is low.Replace the battery immediately.
The yellow LED flashestwice every60 seconds with 2
beeps.
The alarm is malfunctioning. Please clean youralarm and see if it
is working normally. If not, replace the device immediately.
The yellow LED flashes3 times every 60 seconds with 3
beeps.
The maximum lifetime (10 years) is reached. Replace the alarm
immediately. If immediate replacement is not possible, you may
push the TEST/HUSH button once to silence for 22 hours.
FCC Statement
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 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 to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance 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.
Environmental Protection
Waste electrical products should not be disposed of with household waste. Please recycle where facilities exist. Check
with Local Authority or retailer for recycling advice.
Manufacturer and Service Information
X-Sense Innovations Co., Ltd.
Address: B4-503, Kexing Science Park, 15 Keyuan Road, Shenzhen, 518057, CHINA
Email: [email protected]