Kidde Code One Hardwired Smoke Detector with Ionization Sensor and 9-Volt Battery Backup 21006378 - The Home Depot
Lifesaver Smoke Alarm Model 1275 for sale online | eBay
First Alert 10-Year Battery-Operated Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
Kidde Code One Hardwired Smoke Detector with Ionization Sensor and 9-Volt Battery Backup 21006378 - The Home Depot