First Alert Battery-Operated Carbon Monoxide Alarm with Backlit Digital Display

  • Advanced electrochemical CO sensor
  • Easy-to-read digital display
  • Simple and easy to use
Availability: In stock


Be alerted to dangerous carbon monoxide leaks with the First Alert Battery-Operated Carbon Monoxide Alarm with Backlit Digital Display. This carbon monoxide detector uses an electrochemical carbon monoxide sensor. An easy-to-read backlit digital display allows a quick view of current and peak CO levels. This unit is powered by two replaceable AA batteries, offering peace of mind even during power outages.

  • CO detector alerts you to elevated carbon monoxide levels
  • Easy-to-read backlit digital LED display
  • Advanced electrochemical carbon monoxide sensor
  • Battery-operated carbon monoxide detector
  • Loud 85 dB alarm sounds when CO levels are elevated
  • EZ view backlit digital display, easy viewing of danger levels, current, and peak co levels in your home. illuminates only when in alarm or button is pressed
  • EZ access battery door, front-open compartment allows easy battery change without dismounting alarm
  • Mute button silences unnecessary alarms. It also tests alarm functions with same button
  • Low battery signal mute, quiets low battery signal for up to 8 hrs
  • Electrochemical sensor, most accurate technology available for detecting carbon monoxide compared to other common sensing technologies
  • End of life timer, alarm chirps when it is time to replace it
  • 2 AA batteries included
  • Emits T3 pattern
Advanced Electrochemical CO Sensor

The First Alert Battery-Operated 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 can’t be seen, smelled, or tasted in the air, and it is the leading cause of accidental poisoning deaths in America. Placing carbon monoxide detectors on every floor of the home and in each sleeping room is an important way to protect your family from danger.

Easy-to-Read Digital Display

Thanks to the unit’s backlit LED display, it’s easy to see the current CO concentrations in parts per million, as well as recent peak levels, and the threshold for dangerous levels. The easy-to-read display illuminates when a button is pressed or an alarm is triggered. A remote control can be used to quiet unwanted alarms (remote control sold separately).

Comprehensive Warning Features

When carbon monoxide levels rise, the carbon monoxide detector sounds an 85-decibel siren. A low-battery alarm alerts you when battery power is running low, and an end-of-life timer lets you know when the device should be replaced. A low battery signal mute quiets the low battery signal for up to eight hours. 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 two included AA batteries, and the CO detector will start to monitor your space for carbon monoxide. An EZ access battery door allows you to quickly install or remove batteries without having to dismount the alarm. A single button silences the alarm and tests the CO detector.

  • Battery Type: Two AA
  • Sensor Type: Electrochemical
  • Length: 3-3/8"
  • Width: 1-1/2"
  • Height: 5"
  • Weight: 0.7 lb
  • Warranty: 7 Year Limited

Instruction Manual.pdf


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