![Gentex Hardwired Interconnected Photoelectric Smoke Alarm with Dualink, Battery Backup and Relay Contacts S1209F - The Home Depot Gentex Hardwired Interconnected Photoelectric Smoke Alarm with Dualink, Battery Backup and Relay Contacts S1209F - The Home Depot](https://images.thdstatic.com/productImages/df4aab80-44ff-440e-994c-6263ca092d4e/svn/gentex-hardwired-smoke-detectors-s1209f-64_1000.jpg)
Gentex Hardwired Interconnected Photoelectric Smoke Alarm with Dualink, Battery Backup and Relay Contacts S1209F - The Home Depot
![First Alert 10-Year Battery-operated Photoelectric Sensor Smoke Detector in the Smoke Detectors department at Lowes.com First Alert 10-Year Battery-operated Photoelectric Sensor Smoke Detector in the Smoke Detectors department at Lowes.com](https://mobileimages.lowes.com/productimages/8d0c170c-2393-48e9-9d7e-623494bdaf34/09146397.jpg?size=pdhism)
First Alert 10-Year Battery-operated Photoelectric Sensor Smoke Detector in the Smoke Detectors department at Lowes.com
![Gentex Hardwired Interconnected Photoelectric Smoke Alarm with Dualink, Battery Backup and Relay Contacts S1209F - The Home Depot Gentex Hardwired Interconnected Photoelectric Smoke Alarm with Dualink, Battery Backup and Relay Contacts S1209F - The Home Depot](https://images.thdstatic.com/productImages/19023070-c506-49b6-9feb-ee17654ed827/svn/gentex-hardwired-smoke-detectors-s1209f-c3_600.jpg)
Gentex Hardwired Interconnected Photoelectric Smoke Alarm with Dualink, Battery Backup and Relay Contacts S1209F - The Home Depot
![Amazon.com: First Alert PR700 Slim Photoelectric Smoke Alarm | Battery Operated Smoke Detector (Pack of 3) : Everything Else Amazon.com: First Alert PR700 Slim Photoelectric Smoke Alarm | Battery Operated Smoke Detector (Pack of 3) : Everything Else](https://m.media-amazon.com/images/I/61-33EzReGL._AC_UF894,1000_QL80_.jpg)
Amazon.com: First Alert PR700 Slim Photoelectric Smoke Alarm | Battery Operated Smoke Detector (Pack of 3) : Everything Else
![Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com](https://m.media-amazon.com/images/I/71BI96hlFJL._AC_UF894,1000_QL80_.jpg)
Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com
![Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com](https://m.media-amazon.com/images/I/816Grde8dUL._AC_UF894,1000_QL80_.jpg)