Universal Security Instruments USI-1204 Hardwired Ionization Smoke and Fire Alarm with Backup Battery
FireX Kidde I4618 AC/DC - Smoke Alarm 120V Direct Wire with Battery Back-Up
SITERWELL AC Smoke Detector, 10-year Smoke Detector with Test Button and Silence Function, Smoke Alarm with Interconnection Alarm Mode and Photoelectric Sensor for Home, UL Listed, GS517, 4PACK - Walmart.com
Kidde Firex Smoke Detector, Hardwired with Battery Backup & Front-Load Battery Door, Smoke Alarm 21029877 - The Home Depot
Amazon.com : Zeus CCTV 1080P HD Smoke Detector WiFi Spy Camera Wireless IP Wi-Fi Mobile Covert Hidden Nanny Cam Spy Camera Gadget (Connects to Your existing Smoke Detector Connection, 120V AC Quick
First Alert Brk Hardwired Photoelectric Sensor Smoke Detector in the Smoke Detectors department at Lowes.com