Wireless Interconnect Carbon Monoxide Alarm With Voice Alert - CO511B
First Alert BRK 3120B Hardwired Smoke Detector with Photoelectric and Ionization with Battery Backup - Smoke Detectors - Amazon.com
First Alert Brk Battery-operated Carbon Monoxide Detector in the Carbon Monoxide Detectors department at Lowes.com
FIRST ALERT CO511B Carbon Monoxide Alarm, Photoelectric Sensor, 85 dB @ 10 ft Audible Alert, (2) AA Batteries - Walmart.com
First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location - Combination Smoke Carbon Monoxide Detectors - Amazon.com
FIRST ALERT CO511B Carbon Monoxide Alarm, Photoelectric Sensor, 85 dB @ 10 ft Audible Alert, (2) AA Batteries - Walmart.com
First Alert 10-Year Battery-Operated Smart Combination Smoke and Carbon Monoxide Detector with Voice Alert in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com