Lowe's Home Improvement
FREE PARCEL SHIPPING on Qualifying Orders
Previous Next
Zoom Out Zoom In

First Alert Battery-Operated Carbon Monoxide Alarm

  • First Alert Battery-Operated Carbon Monoxide Alarm

First Alert Battery-Operated Carbon Monoxide Alarm

Item #: 304228 |  Model #: CO400

3.86 / 5 7 Reviews

Battery-Operated Carbon Monoxide Alarm

  • Battery powered carbon monoxide detector
  • EZ access battery door with front-open compartment allows easy battery change without dismounting alarm
  • Single button test/silence and low battery warning silence helps you ensure your alarm is working properly
  • Uses an electrochemical sensor which is the most accurate technology available for detecting carbon monoxide (compared to other common sensing technologies)
  • 5 year limited warranty
Power Source Battery-operated
Battery Back-Up No
Voice Alert No
Digital Display No
Smoke Detector No
Peak Level History No
Package Quantity 1.0
Warranty 5-year
UL Safety Listing No
CSA Safety Listing No
ETL Safety Listing Yes
Package Contents Alarm, 2AA batteries, manual
Color / Finish White
Height (Inches) 8.56
Width (Inches) 2.29
Length (Inches) 6.38
Voltage (Volts) 3.0

Product Documentation

Download these helpful files for this product.

  • Installation Guide
  • Warranty Guide
  • Energy Guide
  • Dimensions Guide
  • How To Guide
  • Use & Care Guide
  • Operating Guide

pdf To view these documents, you need Adobe Acrobat Reader. You can download a free copy from the Adobe web site.

Community Q&A
  • Save Item
    Save Item Help
    Save an item to your
    • Lists to collect ideas and plan future projects.
    • Home Profile to organize and store details about your home.
  • Set a Reminder Save Item Help

    Set a Reminder and we'll send you an email when it's time to stock up on items you buy regularly or seasonally, like air filters, fertilizer or mulch. Use notes to record details (quantity, gift recipient, etc.).

  • Go to Your Account