FIRST ALERT CO400-3 Carbon Monoxide Detector, Battery Operated, White , 3-Pack -CO400-3

Name: FIRST ALERT CO400-3 Carbon Monoxide Detector, Battery Operated, White , 3-Pack -CO400-3
Brand: First Alert
SKU: awhd-us-b004qo9vry
Price: 40.45 USD
Availability: InStock

Brand: First Alert

Condition: Used

$40⁴⁵

$59⁹⁹

-33% Save $19⁵⁴

Updated: 2 days ago

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Description

Keep your family safe with this 3-Pack of easy to use, battery operated carbon monoxide alarms; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure

Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room

A loud 85-decibel alarm sounds when CO levels reach dangerous levels

To ensure complete protection make sure to place one on each level of your home and in each bedroom

All First Alert CO alarms are rigorously tested to meet UL standards. Dimensions-3.4 x 1.5 x 5 inches

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Product Details

SKU:: awhd-us-b004qo9vry
Model:: CO400-3
Country:: US
ASIN:: B004QO9VRY
GTIN:: 30029054009143

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $20 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

Why use OpenBoxFox?

Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for First Alert products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.

Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.