


First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke AlarmElectrochemical & ionization sensor Designed for hardwired installation, but features a 10 year battery back up allowing the unit to function if the power goes out Hardwire adapter so there is no need to rewire Can be connected to other compatible BRK or First Alert CO smoke detectors within a single family residence Includes single button silence or test function 10 year limited warranty
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Your First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.1 ★★★★★
Based on 1646 reviews
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Product Reviews
★★★★★ 5
heavy duty quality
Color: Georgia Bulldogs
Bought for friends. They have a dog that will gnaw and chew on anything. This was very durable and lasted with constant chewing and playing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 6, 2025
★★★★★ 4
Heavy
Color: Texas Longhorns
It’s a tough and heavy toy. Probably best for dogs over 10 lbs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
★★★★★ 5
Great quality
Color: Michigan Wolverines
Holds up very well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2025
★★★★★ 3
only 30 min of play and now its starting to fade
Color: Alabama Crimson Tide
its a great SOLID toy. but the design/stamping fades off almost immediately. i thought it was apart of the toy itself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2024
★★★★★ 1
Way too easy for dogs to chew up
Color: Texas Longhorns
I have a black lab who likes to chew toys up. She destroyed this almost immediately with ease. It is not durable whatsoever to any chewing. Do not get.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 5, 2024
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