First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack
Details
- BrandFirst Alert
- StylePrecision
- Power SourceBattery
- ColorWhite
- Product Dimensions5.4"D x 5.4"W
- Item Weight11.2 ounces
Description
🚨 Stay safe, stay savvy—never miss a beat with First Alert’s smart smoke detection!
- END OF LIFE WARNING - Smart alert tells you exactly when it’s time to upgrade, so you never compromise on safety.
- TEST SILENCE BUTTON - Quickly verify functionality or silence nuisance alarms with a simple press—control at your fingertips.
- BATTERY POWERED CONVENIENCE - No wiring hassles—install anywhere with included 9V alkaline battery for instant protection.
- PRECISION DETECTION TECHNOLOGY - Reduces false alarms from cooking, so you stay alert only when it matters.
- FRONT ACCESS BATTERY COMPARTMENT - Swap batteries effortlessly without uninstalling, keeping safety seamless and stress-free.
The First Alert SMI100 is a battery-operated smoke alarm featuring advanced Precision Detection technology to minimize false alarms, a front-access battery compartment for easy maintenance, and a test/silence button for user-friendly operation. It includes a 9V alkaline battery and provides end-of-life alerts, ensuring reliable, hassle-free fire safety in any home.
Specifications
| Brand | First Alert |
| Style | Precision Detection |
| Power Source | Battery Powered |
| Color | White |
| Product Dimensions | 5.4"D x 5.4"W x 1.9"H |
| Item Weight | 11.2 ounces |
| Alarm | Smoke Alarm |
| Sensor Type | Ionization |
| Number of Items | 1 |
| Manufacturer | Resideo |
| UPC | 029054022387 |
| Country of Origin | Mexico |
| Item model number | SMI100 |
| Size | 1-Pack |
| Pattern | SMI100 |
| Item Package Quantity | 1 |
| Included Components | 9V Alkaline Battery |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
Reviews
G**Y
Battery smoke alarms are not affected by power surges ,also easy installation .
I have used these exclusively in my home and they will alarm as advertised . They also give off warning beeps when the battery gets low on charge. Battery included with these smoke alarms. I have one wired smoke alarm but power surges have damaged the wired 120v unit in the past so the battery models are not affected by power surges . Batteries will last about 18 months . Most people die in house fires from smoke so smoke alarms are very cheap insurance to awaken you at the slightest hint of smoke giving you time to escape .
A**A
Easy to Install and Works Great
I needed a replacement for an old smoke alarm that stopped working, and this First Alert model was a perfect choice. Installation was quick and easy—I was even able to use the same screws from the previous unit, which made the whole process hassle-free.The alarm is compact, has a clean look, and the test and silence button is a nice feature for peace of mind. Battery-operated and ready to go right out of the box, it started working immediately after installation.Great value for a reliable, no-fuss smoke detector. Definitely recommend it if you're looking for a simple and effective replacement!
D**D
Reliable and cheap
Works exactly as advertised. I use these frequently across multiple properties. They're easy to install, very reliable, and cost-effective. Great value for the price. I highly recommend to anyone needing a simple and dependable solution.
F**K
Like Walmart used to carry in store
This is the Unit Walmart carried a few years ago for under 8$, no longer available in store now, cheapest I saw was now 29$. Needed some replacements due to age to fit the installed bases, these did the trick. The are not in retail packaging.
M**H
Glad to find this, local stores don’t carry it
It’s not so easy nowadays to find a smoke detector with replaceable batteries. But my experience with the “10-year” battery units is that they have lasted between 10 months (the one this is replacing) and 7 years. So I’m glad to return to this kind.
P**L
FIRST ALERT MAKES THE BEST SMOKE ALARMS
This smoke alarm is being used in combination with one that has a CO detector in it. It is battery operated, and the battery can easily be changed.
R**.
This is a good product. First alert is always good.
Don’t put it next to a vaporizer. This is a very sensitive smoke alarm. I have a vaporizer in the bedroom and I hooked this up in the bedroom, but it seems like the vaporizer sets it off. But other than that, it’s good.
A**R
Sensitive
Works a little to well had to move the toaster it kept going off every I made toast
Common Questions
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