29th Apr 2026, 03:42 AM
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 6-Pack
Price may vary by location, shipping cost, and availability.
$109.96
+ $17.64
Highest: $139.99
Average: $98.83
Lowest: $85.00
Price History Graph
Offer Price Prices
Lowest: -
Average: -
Highest: -
Price History Information
You can check the price history of First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 6-Pack here. This product's current Price in USA is $109.96. The average and highest prices are $98.83 and $139.99 respectively. The current offer price of the product is $127.60.
| Lowest Ever Price | $85.00 |
|---|---|
| 11th Oct 2025 | |
| Average Price | $98.83 |
| Based on 484 days price tracking | |
| Highest Price | $139.99 |
| 8th Jan 2025 | |
Price History of All Variants of First Alert SMI100-AC Hardwire Interconnect Smoke Alarm...
Current Price in USA
| Price | $109.96 |
|---|
Recent Price Drops on First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 6-Pack
Price Drop 17th Apr 2026
$109.96 → $91.75
16.56% drop
Price Drop 3rd Jan 2026
$99.99 → $92.26
7.73% drop
Price Drop 26th Dec 2025
$97.90 → $92.26
5.76% drop
Price Drop 2nd Nov 2025
$104.99 → $92.26
12.12% drop
Price Drop 30th Oct 2025
$97.29 → $92.26
5.17% drop
Price Drop 2nd May 2025
$97.98 → $93.00
5.08% drop
Price Drop 25th Apr 2025
$99.00 → $93.00
6.06% drop
Price Drop 22nd Apr 2025
$99.32 → $93.00
6.36% drop
Price Drop 28th Jan 2025
$133.99 → $119.99
10.45% drop
Price Drop 28th Jan 2025
$119.99 → $105.99
11.67% drop
Product Information
Details
| Product Name | First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 6-Pack |
|---|---|
| Store Product Code | B0DR38F32P |
| Store Name | amazon.com |
| Brand | First Alert |
| Rating | 9.2 / 10 |
| Category | Smoke Detectors & Fire Alarms |
| Product Manufacturer | First Alert |
| Model Number | SMI100-AC |
| Color | White |
| Size | 6-Pack |
| Dimensions | 21.63"D x 3.81"W x 15"H |
Features
- 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
- Through early warning interconnect, when one alarm sounds, all compatible alarms will soun
- Battery backup provides continuous protection during power outages
- Alarm indicator visually identifies the unit that initiated the alarm
- Quick Connect Plug included allows for easy installation with no need to rewire
Images
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Rating and Reviews
9.2 Based on 1931 reviews
First Alert SMI100-AC Hardwire Interconnect Smoke Alarm has 9.2 rating out of 10. This average rating is consist of 1931 individual ratings. You can rate this product at product review page.
* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.