The First Alert
CO400 Carbon Monoxide Alarm utilizes a electrochemical carbon monoxide
sensor that lasts for up to five years to detect carbon monoxide. This
carbon monoxide detector is battery powered, making it portable and easy
to use anywhere, even in the event of a power outage. When carbon
monoxide levels become elevated, a loud 85-decibel alarm alerts you to
First Alert Carbon Monoxide Alarm uses an advanced electrochemical CO
sensor to detect elevated carbon monoxide levels. When CO is detected,
the carbon monoxide detector sounds an alarm to warn you of the threat.
carbon monoxide levels rise, the carbon monoxide detector sounds an
85-decibel siren that is designed to wake even the soundest of sleepers.
A low-battery light and alarm alert you when battery power is running
low, and an end-of-life timer lets you know when the device should be
replaced. Each CO detector lasts approximately five years.
First Alert Carbon Monoxide Alarm is easy to set up. Simply insert the
battery, and the CO detector will start to monitor your space for carbon
monoxide. There are no complicated displays or settings to navigate–a
single button silences the alarm and tests the CO detector. A pull-down
action chart instructs you of what to do if the CO alarm goes off.