top of page

First Alert Basic Battery Operated Carbon Monoxide Alarm - CO400

Detector features a single test/silence button for efficient testing.

Battery-operated detector is portable.

Loud 85-decibel alarm sounds when CO levels are detected.

CO detector alerts you to carbon monoxide.

Utilizes an electrochemical carbon monoxide sensor to detect carbon monoxide.

Basic Battery Operated Carbon Monoxide Alarm

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 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 the threat.

The Most Accurate CO Sensor Available

The 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.

Comprehensive Warning Features

When 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.

Simple and Easy to Use

The 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.

Where To Place Carbon Monoxide Alarms: One on every level of the home and one in each sleeping area.

Power Source: Battery Operated

Battery Type: 9V

Sensor: Electrochemical

Simple and Easy to Use: Simply insert the battery, and the CO detector will start to monitor your space for carbon monoxide

Single Button: One press to silence and test alarm

End of Life Timer: Alarm chirps when it is time to replace it

Standard: Conforms to UL 2034 Standard

Warranty: 5 Year Limited

Product Dimensions (LxWxH): 3.4 x 1.4 x 4.9 in.

Product Weight: .35 lbs.

First Alert Basic Battery Operated Carbon Monoxide Alarm - CO400

SKU: FLTCO400B
$19.95Price
Excluding Sales Tax |
Quantity
  • 5-Year Manufacturer Warranty

  • Returns accepted within 30 days from purchase , buyer responsible for return shipping and must be returned in same ORIGINAL , UNOPENED condition for a refund .See full return policy on bottom right hand corner of page for more return policy info.

bottom of page