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Operating Instructions
If something goes wrong with your alarm, it will notify you of what’s going on through the colored LED
indicator and beeping pattern.
1. Call emergency services as soon as possible.
2. Move outside immediately for fresh air. Make sure everyone in the house has evacuated the area. Do not
re-enter the house until the air in the house has had time to recirculate and your alarms return to normal
working condition. If it is impossible to move outside, stay close to an open door/window until
emergency personnel arrives.
3. After following steps 1–2, if your alarm alerts again within a 24-hour period, repeat steps 1–2 and call a
qualified technician to investigate sources of CO from fuel-burning equipment and appliances to ensure
proper operation of this equipment.
4. If problems are identified during this inspection, have the device serviced immediately. For combustion
devices that have not been inspected by a technician, consult the manufacturer’s instructions, or contact
the manufacturer 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.
Press the Test/Silence button. The device should emit two sets of three long beeps, followed by two sets of
four beeps. The LED indicator should flash red. After testing, the device will automatically return to standby
mode.
Press and hold the Test/Silence button on any device until you hear beeps. The initiating device should keep
beeping with its LED indicator flashing red. Other interconnected devices should emit two sets of three long
beeps with the LED indicator flashing red and green in sequence, then emit two sets of four beeps with the
LED indicator flashing red.
The test will finish within three minutes, at which point all devices will return to standby mode.
Do not tamper with this device, as this may result in electrical shock or device malfunction.
What to Do When an Alarm Sounds
If a smoke alarm is triggered, you will hear and see:
How to respond to a smoke alarm:
If a CO alarm is triggered, you will hear and see:
How to respond to a CO alarm:
Using the Silence Function
The silence function is only intended for temporarily silencing an alarm, not for correcting any problems.
Note that you cannot silence an alarm by removing the battery from the device or disconnecting from
power. Doing so will disable the unit and remove your protection.
If an alarm is triggered, all other interconnected alarms will sound simultaneously with the initiating alarm. If
the smoke alarm and CO alarm are both triggered at the same time, the smoke alarm will take priority over
the CO alarm in terms of signaling. When an alarm sounds, the first thing to do is identify the type of alarm.
1. Locate the source of fire. If a fire is present, exit the house immediately.
2. Do not panic. Stay calm and follow your escape plan.
3. Touch doors before you open them. If the door is not hot to the touch, open it slowly. If hot, avoid it. Keep
doors and windows closed unless you must escape through them.
4. Cover your nose and mouth with a cloth (preferably damp). Take short, shallow breaths.
5. Once outside, call the Fire Department as soon as possible.
6. Never re-enter a burning building for any reason.
Important:
Buzzer
LED Indicator
Initiating Device
Other Interconnected Devices
Flashes red three times every four
seconds
Three beeps every four seconds
Flash red and green in sequence
every four seconds
Buzzer
LED Indicator
Initiating Device
Other Interconnected Devices
Flashes red four times every 5.8 seconds
Four beeps every 5.8 seconds
Flash red four times and green once
every 5.8 seconds
To test an individual device:
To test all interconnected devices:
