★★★★★ 5
Looks good.
Color: Grey, Size: 55.1"W x 10.3"D x 1.8"H, Set of 2
They look good in my den!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
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
Quick Dispatch:
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
Order Tracking:
You'll receive a tracking link by email once your First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm ships.
Need Help?
Questions about First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide and Smoke Alarm in your area.
Get Shipping Estimates
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
You may also like
OC Raw Freeze Dried Chicken Meaty Rox Dog Food 5.5oz
13.49
Vital Essentials Freeze-Dried Cat Food Mini Nibs Duck 12oz
45.99
D-Con Refillable Rat Bait Station (12-Refill)
21.99
Tidy Cat Breeze Litter Pellets Cat Litter 3.5lb
12.99
LED Light Bulbs, Soft White Clear, 4.5-Watts, 450 Lumens, 2-Pk.
12.99
Water Buffalo Horn Small
10.79
American Natural Premium Legume Free Turkey & Pumpkin Dog Food 12lb
36.29
4.4 ★★★★★
Based on 406 reviews
Sort
Product Reviews
★★★★★ 5
Great quality and easy install
Color: White, Size: 55.1"W x 10.3"D x 1.8"H, Set of 1
Great quality. Very easy install. Mounted mine above my fireplace to create a mantel. Looks like it was there from the day the apartment was built. So far it has held a good bit of weight with heavy ceramic decor and one very fat cat jumping up on it lol.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025
★★★★★ 5
Great quality
Color: Rustic Brwon, Size: 16in
Hassle but they work great. I love the color, the thickness and quality. They do have some weight but in my opinion, I prefer that. Right now the four shelves are holding up my WiFi routers and remotes. Will buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
★★★★★ 5
Good quality shelves
Color: Walnut, Size: 24in, Color: Walnut, Size: 24in
These shelves are gorgeous in person. Yes, they're darker than the listing pics, but I actually prefer it. The grain is beautiful, they came well-packed, and mounting them was no trouble at all. Now I've got display space that feels both stylish and practical. Definitely worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
★★★★★ 5
AWESOME
Color: Rustic Brwon, Size: 16in
EASY INSTALL, I WILL BUY MANY MORE
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
![[Center] Lize, Level 3 (DiR)](https://cdn.shopify.com/s/files/1/0612/4018/0970/products/1638231214417.jpg?v=1638231363)
