4 6 out of 5 stars 6 291.
First alert co400 battery door lock.
Install a new battery and test.
Back of the alarm.
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Learn more what do first alert smoke or co alarms sound like.
Simply insert the two included aa batteries and the co detector will start to monitor your space for carbon monoxide.
Alarm chirps with new battery.
Basic plug in carbon monoxide alarm with battery backup.
Red or green light on alarm.
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Before you lock the batteries into place press the test silence button on the smoke co alarm s cover until the alarm sounds.
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The first alert co400 carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor that lasts for up to five years to detect carbon monoxide.
Back of the alarm.
Carbon monoxide plug in alarm with battery backup.
In the six decades since we have continued to create innovative products from the first residential smoke alarm to the first battery operated carbon monoxide alarm.
Detector with battery backup.
Learn more how to replace 9v batteries in smoke or co alarms.
In this article you ll learn how to lock or unlock an alarm s battery drawer.
Learn more how to stop false or nuisance smoke alarms.
First alert co615 dual power carbon monoxide plug in alarm with battery backup and digital display 2 pack 4 6 out of 5 stars 80 63 98 63.
4 7 out of 5 stars 5 717.
If the unit does not alarm during testing do not lock the battery compartment.
Photoelectric smoke and co alarm with sealed battery.
The first alert co400 carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor that lasts for up to five years to detect carbon monoxide.
This carbon monoxide detector is battery operated making it portable and easy to use even in the event of a power outage.
Lock the battery drawer.
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First alert co400 carbon monoxide detector white pack of 1.
First alert began in 1958 when three friends set out to create a commercial smoke alarm.
Learn more how to change batteries in first alert alarms.
An ez access battery door allows you to quickly install or remove batteries without having to dismount the alarm.
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