Add to favorites
FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features by First Alert - Used condition

FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features

Brand: First Alert

Condition: Used
$2123
$2449
-14% Save $326
Updated: 4 days ago

Description

HIGHEST QUALITY, most accurate electrochemical co sensor technology

CONVENIENT, end of life chirping signal

HELPFUL, 2 silence features that silence both alarm and low-battery chirp

FEATURES, 9-Volt Battery and all necessary mounting hardware

Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

Electrochemical CO Sensor is the most accurate technology available

Two Silence Features Silence Low Battery Chirp For up to 8 Hours

End of Life Signal

Tamper Resistant Locking Pin Locks Alarm Cover to Prevent Removal of Battery

9V Battery Included

Sold by

Amazon Warehouse

Verified Retailer

Official Amazon outlet for open-box & returned items

  • Backed by Amazon's A-to-Z Guarantee
  • 30-day return policy
  • Ships from Amazon fulfillment centers
  • Price verified on Amazon

Product Details

SKU:
awhd-us-b0039qev4s
Model:
CO250B
Country:
US
ASIN:
B0039QEV4S
GTIN:
00029054003928
UPC:
029054003928

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 $3 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.

Sign in to save items

Save favorites and get alerts when prices drop.

or

We'll email you a link to sign in instantly — no password needed.