![FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup. 3-Pack , White - Amazon.com FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup. 3-Pack , White - Amazon.com](https://m.media-amazon.com/images/I/715UhOnphWL._AC_UF894,1000_QL80_.jpg)
FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup. 3-Pack , White - Amazon.com
![First Alert Direct Wire Combination Smoke And Carbon Monoxide Detector, 120 Volt With 9 Volt Battery Back Up SC9120B 6 PACK - Walmart.com First Alert Direct Wire Combination Smoke And Carbon Monoxide Detector, 120 Volt With 9 Volt Battery Back Up SC9120B 6 PACK - Walmart.com](https://i5.walmartimages.com/asr/4f7b0297-9fef-4b37-8cee-db212eaf8826_1.709c73e0f24b0f0382d0d998250b4b45.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
First Alert Direct Wire Combination Smoke And Carbon Monoxide Detector, 120 Volt With 9 Volt Battery Back Up SC9120B 6 PACK - Walmart.com
![First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 12-Pack - Amazon.com First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 12-Pack - Amazon.com](https://m.media-amazon.com/images/I/71Olpi1d0dL.jpg)
First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 12-Pack - Amazon.com
![First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com](https://mobileimages.lowes.com/productimages/800158dc-5112-4baf-8e46-aea78324128a/04750375.jpg)
First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
![First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com](https://mobileimages.lowes.com/productimages/afbd510a-2861-4e07-a74d-f75c1bb9fbc7/07681765.jpg)
First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
![First Alert Brk 6-Pack Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com First Alert Brk 6-Pack Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com](https://mobileimages.lowes.com/productimages/6bef1463-7097-48b1-90e4-91f055ae231c/11204188.jpg)
First Alert Brk 6-Pack Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
![FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide Detector with Battery Backup and FIRST ALERT BRK9120b6CP Smoke Detector Alarm | Hardwired with Backup Battery - Amazon.com FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide Detector with Battery Backup and FIRST ALERT BRK9120b6CP Smoke Detector Alarm | Hardwired with Backup Battery - Amazon.com](https://m.media-amazon.com/images/I/71IiETmZCpL.jpg)
FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide Detector with Battery Backup and FIRST ALERT BRK9120b6CP Smoke Detector Alarm | Hardwired with Backup Battery - Amazon.com
![First Alert SC9120B Direct Wire Combination Smoke and Carbon Monoxide Detector, 120 Volt 9 Volt Battery Back-up - 3 Pack - Walmart.com First Alert SC9120B Direct Wire Combination Smoke and Carbon Monoxide Detector, 120 Volt 9 Volt Battery Back-up - 3 Pack - Walmart.com](https://i5.walmartimages.com/seo/First-Alert-SC9120B-Direct-Wire-Combination-Smoke-and-Carbon-Monoxide-Detector-120-Volt-9-Volt-Battery-Back-up-3-Pack_009416ae-9d9f-471a-9a87-b5861adb2a86_1.3fce4d13df3b4be2a556ef946e4a7646.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
First Alert SC9120B Direct Wire Combination Smoke and Carbon Monoxide Detector, 120 Volt 9 Volt Battery Back-up - 3 Pack - Walmart.com
![FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide Detector with Battery Backup and FIRST ALERT BRK9120b6CP Smoke Detector Alarm | Hardwired with Backup Battery - Amazon.com FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide Detector with Battery Backup and FIRST ALERT BRK9120b6CP Smoke Detector Alarm | Hardwired with Backup Battery - Amazon.com](https://m.media-amazon.com/images/I/71IiETmZCpL._AC_UF1000,1000_QL80_.jpg)