12-Month Warranty Included Details

Free Shipping Orders $50+ Details

First Alert Battery-Powered Carbon Monoxide Alarm

First Alert  |  SKU: 3P2059-FAT1039718
Regular price $27.99

Condition: New

This product is brand new, unused, and includes a full manufacturer warranty. Learn more

Warranty: 5 Year Warranty

5 Year Warranty Learn more

Free Shipping on Orders $50+

Free shipping with orders over $50.00. 30-day returns. Learn more

The First Alert CO400 Carbon Monoxide Alarm utilizes a electrochemical carbon monoxide sensor that lasts for up to 5 years to detect carbon monoxide. This carbon monoxide detector is battery powered, making it portable and easy to use anywhere. When carbon monoxide levels become elevated, a loud 85dB alarm alerts you to the threat.

Features

  • Model number C0400
  • Alerts to dangerous carbon monoxide levels
  • Most accurate electrochemical carbon monoxide sensor technology
  • Battery-operated design works almost anywhere
  • Loud 85dB alarm sounds when carbon monoxide levels are elevated
  • Single test/silence button for simple operation
  • 5-year limited warranty

  • Includes 9V battery

Verdi Certified.
Backed by 1-year warranty.

Our Certified Refurbished products are rigorously tested, meet original manufacturer standards, and include a 12-month warranty—giving you premium quality without compromise.

Get to know Verdi

What does "certified refurbished" actually mean?

A refurbished product is one that was returned and then restored to as close to like-new as possible—including replacement parts and updated software where needed. Every refurbished product we sell is certified, meaning it's been restored by the manufacturer or an authorized partner and tested to original standards. Want the full breakdown? Read Refurbished, Renewed, Used… What's the Difference?

Are all refurbished items in equally good condition?

Yes. Every refurbished refurbished product is cleaned and tested to come as close to like-new as possible. We also carry new condition products which are unopened and brand new!

Do your products come with a warranty?

They do. Every refurbished product is backed by our 12-Month Refurb Warranty, and many new products carry longer coverage—1–2 years, and in some cases a Lifetime Warranty. Need specifics on your item? Contact us and we'll help.

Do you accept returns?

You can return most items within 30 days of delivery for a full refund. Items may be opened and inspected and still qualify, as long as they're returned in the same condition you received them and include all original accessories.

Do I have to pay for return shipping?
If the return is due to our error—such as an incorrect or defective item—we cover the return shipping cost.

When will I get my refund?
Refunds are typically issued within 5–14 business days after we receive your returned item.