





The First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm is equipped with First Alert’s Precision Detection advanced sensing technology and meets new industry standards. This 2-in-1 smoke and carbon monoxide alarm provides reliable protection against both threats and is easy to install and maintain.
First Alert’s Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
Provides reliable 2-in-1 protection against both smoke and carbon monoxide
Battery-operated alarm allows for easy installation and maintenance
Test/silence button for efficient testing to ensure alarm is working properly
End-of-life warning lets you know when it’s time to replace the alarm
13 reviews for First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMCO100, 1-Pack,White
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$38.08

Aaron –
Buy
Excellent alarm. It was easy to install, the alerts are loud and clear, and I appreciate having both smoke and carbon monoxide detection in one unit. It feels reliable and well-made, giving some extra peace of mind. Definitely worth the purchase
Eric –
Essential Safety Solution: First Alert Powered Alarm SCO5CN
⭐⭐⭐⭐⭐The First Alert Powered Alarm SCO5CN has become an integral part of my home’s safety system, providing reliable protection against both smoke and carbon monoxide. Here’s why I give it a solid 5-star rating:Dual Protection:This combination smoke and carbon monoxide detector offers peace of mind by safeguarding my family and home against two common household hazards. With one device, I have comprehensive protection against both smoke from fires and carbon monoxide leaks.Reliable Performance:First Alert is a trusted name in home safety, and the SCO5CN lives up to the brand’s reputation for reliability. It detects smoke and carbon monoxide quickly and accurately, emitting loud alarms to alert occupants in case of an emergency.Battery Operated:The battery-operated design ensures continuous protection even during power outages. I appreciate the added reliability and convenience of not having to worry about the detector losing power during emergencies.Easy Installation:Installing the SCO5CN is a breeze. With no wiring required, I was able to mount it in minutes using the included mounting bracket and screws. The simple setup process means I can quickly and easily enhance the safety of my home without any hassle.Sleek Design:The sleek, white design of the SCO5CN blends seamlessly with my home decor. Its low-profile design and compact size make it unobtrusive while still providing essential protection.In conclusion, the First Alert Powered Alarm SCO5CN is an essential safety device for any home. With its dual protection against smoke and carbon monoxide, reliable performance, battery-operated design, easy installation, and sleek appearance, it offers everything I need to keep my family and home safe. Highly recommended! 🏠🔥🚨
Mediahound 🎧 –
So far, so good!
I had a $120 Google Nest Protect previously and it malfunctioned and I believe requires a good wifi connection to really work properly. I wanted something simple and reliable so switched to the this First Protect. So far so good. No false alarms yet and installation was straightforward. They even included drywall anchors, something that was not even included with the Nest Protect. Just drill a 3/16 hole and then lightly hammer the drywall anchors in, then screw the mounting bracket in to the anchors using a phillips screwdriver.You can also rotate the First Alert in it’s mounting bracket so that the words line up exactly how you like them. No one likes a smoke detector mounted on the wall with the lettering skewed or upside down. You do not have to screw the unit on the mount all the way in order for it to be secure.The features are simple and to the point, just write down in your smartphone or wherever what the different beeps mean because you will probably forget later on. There are only a few different beep sequences so it’s not overly complicated but you will want to know for example when it’s telling you the battery needs replacement vs. when it’s at the end of it’s life cycle.This is an inexpensive, simple and relatively attractive unit, although I really wish smoke detector companies would put more effort in to beautiful designs. That’s one of the things I like better about the Nest Protect.
sol lazarus –
Good smoke alarm, great warranty!
Good smoke/CO detector, malfunctioned after a couple years. I called the company and given their generous warranty policy, they replaced it with the new model for free, just had to pay a few dollars for shipping.
Jennifer kaus –
Easy to install
It works
LW –
Only brand I trust.
Purchased home and have replaced the original builder alarms with this. Works great and trusted.
Amazon Customer –
Battery slot is well hidden
Nvm. I thought it was battery-less, but I just found the slot on the side for 2 AA batteries. Works like a charm now!Hmm…. My 10-year alarm went out after 1.5 years. Not sure if I got a dud or if this is a known pattern.
Dave –
Great Detectors
These are an updated version and now have a 10 year lifespan. First Alert makes great detectors.
Shahd –
منتج رائع وجودة عاليه جدا
Mike –
Item exactly as was described on website. Fitted and no problems.
Erik Jaeken –
Correct product. Snelle levering.
Michael Field –
Replaced the same product which expired by date….
ahmed –
good quality good size