First Alert SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup - Walmart.com
First Alert CO615 Plug-In Carbon Monoxide Alarm with Battery Backup & Backlit Digital Display | First Alert
First Alert 10-Year Battery-Operated Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
First Alert 10-Year Battery Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
Kidde 10-Year Worry Free Smoke & Carbon Monoxide Detector, Lithium Battery Powered with Photoelectric Sensor and Voice Alarm 21030866 - The Home Depot
Carbon Monoxide Detector for Car, Briidea Low-Level Fast 9ppm Alarm CO
Jemay Carbon Monoxide Detector Alarm, CO Detector with Digital LCD Display, Replaceable Battery Carbon Monoxide Detectors for Home and Depot, 3 LED Lights Carbon Monoxide Alarm, 1-Pack - Amazon.com