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First Alert Smoke Alarm, Battery-Operated Detector with Test & Silence Button, SMI100, 1-Pack
AMAZON.COM
Price
$ 16.99
Last price was updated on: 12th Dec 2025, 06:23 PM
Pricing Analytics & Buying Assistance
Price Score:
Good
Poor
Average
Good
Excellent
Current Price
$16.99
$15.47
Lowest
$19.99
Highest
Buying Advice:
Good – Worth buying. 77% chance price goes up. Buy soon.
Good – Worth buying. 77% chance price goes up. Buy soon.
Price History Benchmarks
Lowest Ever
$15.47
1st May 2025
Highest Ever
$19.99
28th Feb 2024
Average Price
$17.18
135 data points
Last 3M Low
$16.95
15th Sep 2025
Last 6M Low
$15.47
20th Jul 2025
Last 12M Low
$15.47
1st May 2025
Price History Chart
Product Technical Information
| Product Code | B0CJMP7WHH |
|---|---|
| Market Place | amazon.com |
| Market Place Name | Amazon.com |
| Brand Name | First Alert |
| Rating | 4.5 ( 22544 ratings ) |
| Category | Smoke Detectors & Fire Alarms |
| Manufacturer | Resideo |
| Model Number | SMI100 |
| Item Color | White |
| Item Size | 1-Pack |
| Item Dimensions | 5.4"D x 5.4"W x 1.9"H |
Frequently Asked Questions
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What is the lowest price ever for this product?The lowest price for First Alert Smoke Alarm Battery-Operated Detector with Test amp Silence Button SMI100 1-Pack was $15.47 on 1st May 2025. This is the best recorded deal so far.
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What is the highest price ever for this product?The highest price for First Alert Smoke Alarm Battery-Operated Detector with Test amp Silence Button SMI100 1-Pack was $19.99 on 28th Feb 2024. Prices have dropped since then.
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What is the average price of this product?The average price for First Alert Smoke Alarm Battery-Operated Detector with Test amp Silence Button SMI100 1-Pack is $17.18 (135 data points). This helps you compare current deals.
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What is the lowest price in the last 3 months?In the last 3 months, First Alert Smoke Alarm Battery-Operated Detector with Test amp Silence Button SMI100 1-Pack reached a low of $16.95 on 15th Sep 2025. Recent price trends may help you decide when to buy.
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Should I buy this product now?Worth buying. The price is good, but you may wait for a better deal. 77% chance price goes up. Price may increase soon.