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First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 12-Pack

4.5 (2,908) out of 5 stars on Amazon

$216.90

$18.08 each (12 in the pack)

500+ bought last month

The price may change at the store.

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About this product

Store: Amazon
Category: Tools & Home Improvement
Store rating: 4.5 out of 5 (2,908 ratings)
Sales: 500+ bought in past month

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FAQs about First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 12-Pack

How much is First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 12-Pack?

At our last check, it was $216.90 on Amazon (checked Nov 11, 2026, 12:11 PM ET). Prices can change on the store at any time.

Is First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 12-Pack well rated?

It is rated 4.5 out of 5 stars from 2,908 ratings on Amazon.

Where can I buy First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 12-Pack?

On Amazon, through the button on this page. On Sale Spot does not sell products directly: the purchase, payment and shipping are handled by Amazon.

What goes well with First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 12-Pack?

People who buy this often also get: Amazon Basics 8-Pack 9V Long-Lasting Alkaline Batteries for Smoke Detector, Electronics & Audio, Reliable, 5-Year Shelf Life ($12.69 on Amazon); 25 in 1 mini screwdriver set, flat head and cross shaped small screwdrivers, suitable for electronic products ($2.21 on AliExpress); 1pc Universal Double Ended Wrench, Self-Tightening 3-17mm Screw Nuts Repair Wrench, Double-Headed Ratchet Spanner, Adjustable ($2.29 on AliExpress).