Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

First Alert 9-volt-Battery Smoke Detectors

25 results

First Alert 
BRK Hardwired (with Battery Back-up) Ionization Interconnected Smoke Detector (6-Pack)

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for pricing and availability

4.6
1078

First Alert 
BRK Hardwired (with Battery Back-up) Ionization Smoke Detector

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for pricing and availability

4.6
1078

First Alert 
BRK Battery-operated Ionization Smoke Detector

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for pricing and availability

4.5
496

First Alert 
Hardwired (with Battery Back-up) Ionization Interconnected Smoke Detector

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for pricing and availability

4.7
438

First Alert 
Battery-operated Ionization Smoke Detector (2-Pack)

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for pricing and availability

4.2
50

First Alert 
Battery-operated Ionization Smoke Detector

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for pricing and availability

5.0
12

First Alert 
Battery-operated Ionization Smoke Detector

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for pricing and availability

4.2
50

First Alert 
BRK Hardwired (with Battery Back-up) Heat Detector

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for pricing and availability

4.7
26