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First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm
First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm
First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm
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First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm

Marsoni M251S
Sale price$77.99
Pay 4 payments of $19.50 a month.Shop Pay
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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  • 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]
  • Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 2076 reviews
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Product Reviews
S
Verified Purchase
Stephanie
Phoenix, US
★★★★★ 5
Great way to keep your crazy puppy busy.
Color: blue
This is our second automatic dog toy we’ve boughten. The first one was big and just had one movement with different speeds. This one is so much better. It’s smaller so it’s not so heavy, perfect for a puppy. It has a soft squeak, at first I was worried it was going to drive me nuts but I don’t even notice it. When it squeaks it moves one way then it starts moving another way without squeaking. Keeps my puppies attention. He likes to grab it and fling it back and forth where sometimes it hits him in the head, thankfully this one is smaller and lighter so it doesn’t hurt him. It’s great quality, seems like the material is going to last through lots of chewing. Would 100% buy again and recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
M
marie6182@hotmail
Lowell, US
★★★★★ 5
Durable Automatic Rolling Dog Ball, Rechargeable Pet Entertainment Toy
Color: blue
Totally worth buying! This blue interactive toy is well-made and wear-resistant. Multiple playing ways meet daily needs. Fast Type-C charging, portable and space-saving. Keeps dogs mentally stimulated and physically active all day long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
S
Verified Purchase
Stephanie
Phoenix, US
★★★★★ 5
Great way to keep your crazy puppy busy.
Color: blue
This is our second automatic dog toy we’ve boughten. The first one was big and just had one movement with different speeds. This one is so much better. It’s smaller so it’s not so heavy, perfect for a puppy. It has a soft squeak, at first I was worried it was going to drive me nuts but I don’t even notice it. When it squeaks it moves one way then it starts moving another way without squeaking. Keeps my puppies attention. He likes to grab it and fling it back and forth where sometimes it hits him in the head, thankfully this one is smaller and lighter so it doesn’t hurt him. It’s great quality, seems like the material is going to last through lots of chewing. Would 100% buy again and recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
M
marie6182@hotmail
Chelsea, US
★★★★★ 5
Durable Automatic Rolling Dog Ball, Rechargeable Pet Entertainment Toy
Color: blue
Totally worth buying! This blue interactive toy is well-made and wear-resistant. Multiple playing ways meet daily needs. Fast Type-C charging, portable and space-saving. Keeps dogs mentally stimulated and physically active all day long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
A
Verified Purchase
Ashtyn
Lowell, US
★★★★★ 5
Must must must
Must get! My dogs are obsessed with these! We go through them regularly!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026

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