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Smoke Detector, Hardwired Interconnected Smoke Detectors, Smoke Alarm with Replaceable 9V Battery, Interconnects Up to 12 Fire Alarms Smoke Detectors, Fire Alarm with Test/Silence Button, 2Packs
AMAZON.COM
Price
$ 18.99
Last price was updated on: 21st Nov 2025, 06:31 AM
Pricing Analytics & Buying Assistance
Price Score:
Excellent!
Poor
Average
Good
Excellent
Current Price
$18.99
$13.49
Lowest
$99.99
Highest
Buying Advice:
Excellent! Buy now. 45% chance price goes up. Buy soon.
Excellent! Buy now. 45% chance price goes up. Buy soon.
Price History Benchmarks
Lowest Ever
$13.49
20th Mar 2024
Highest Ever
$99.99
5th Nov 2022
Average Price
$19.57
38 data points
Last 3M Low
$15.29
28th Sep 2025
Last 6M Low
$15.29
31st Aug 2025
Last 12M Low
$14.44
24th Mar 2025
Price History Chart
Product Technical Information
| Product Code | B0B4NJN47H |
|---|---|
| Market Place | amazon.com |
| Market Place Name | Amazon.com |
| Brand Name | Putogesafe |
| Rating | 4.4 ( 1047 ratings ) |
| Category | Smoke Detectors & Fire Alarms |
| Manufacturer | Siterwell Electronics Co.,Limited |
| Model Number | GS521C-A |
| Item Color | white |
| Item Size | 2 pack |
| Item Dimensions | 1.6"D x 5"W x 5"H |
Frequently Asked Questions
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What is the lowest price ever for this product?The lowest price for Smoke Detector Hardwired Interconnected Smoke Detectors Smoke Alarm with Replaceable 9V Battery Interconnects Up to 12 Fire Alarms Smoke Detectors Fire Alarm with TestSilence Button 2Packs was $13.49 on 20th Mar 2024. 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 Smoke Detector Hardwired Interconnected Smoke Detectors Smoke Alarm with Replaceable 9V Battery Interconnects Up to 12 Fire Alarms Smoke Detectors Fire Alarm with TestSilence Button 2Packs was $99.99 on 5th Nov 2022. Prices have dropped since then.
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What is the average price of this product?The average price for Smoke Detector Hardwired Interconnected Smoke Detectors Smoke Alarm with Replaceable 9V Battery Interconnects Up to 12 Fire Alarms Smoke Detectors Fire Alarm with TestSilence Button 2Packs is $19.57 (38 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, Smoke Detector Hardwired Interconnected Smoke Detectors Smoke Alarm with Replaceable 9V Battery Interconnects Up to 12 Fire Alarms Smoke Detectors Fire Alarm with TestSilence Button 2Packs reached a low of $15.29 on 28th Sep 2025. Recent price trends may help you decide when to buy.
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Should I buy this product now?Buy now. The price is excellent compared to its history. 45% chance price goes up. Price may increase soon.