Lowe's Home Improvement
First Alert Battery-Operated Carbon Monoxide Detector

First Alert Battery-Operated Carbon Monoxide Detector

Item #: 304228 |  Model #: CO400

3.54 / 5 13 Reviews

Buy 6, Get 20% Off

Battery-Operated Carbon Monoxide Detector

  • Battery-operated carbon monoxide detector protects against toxic gas exposure (9-volt battery included)
  • Electrochemical sensor provides the most accurate technology for carbon monoxide detection to prevent accidental poisoning
  • Test/silence button and ensures your detector is working properly and mutes unwanted beeping
  • End-of-life signal provides audible notification when detector needs to be replaced for constant protection from the threat of the colorless, odorless gas
  • ETL safety listing demonstrates this product has met minimum requirements of widely accepted product safety standards
  • 5-year limited warranty gives you peace of mind
  • Easy-access door with front-open compartment allows you to change the battery without dismounting detector, making replacements effortless
Power Source Battery-operated
Battery Back-Up No
Voice Alert No
Digital Display No
Smoke Detector No
Peak Level History No
Package Quantity 1
Warranty 5-year
UL Safety Listing No
CSA Safety Listing No
ETL Safety Listing Yes
Package Contents Alarm, 9 volt battery, manual
Color / Finish White
Height (Inches) 8.56
Width (Inches) 2.29
Length (Inches) 6.38
Voltage (Volts) 3
Works with Iris No

Product Documentation

Download these helpful files for this product.

  • Use & Care 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