Amazon.com: First Alert Onelink Safe & Sound - Battery Powered Smart Hardwired Smoke + Carbon Monoxide Alarm and Premium Home Speaker with Amazon Alexa
Kidde Smoke & Carbon Monoxide Detector with Voice Alerts, Battery Powered, Combination Smoke & CO Alarm - Amazon.com
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery , White, 1 Pack - Combination Smoke Carbon Monoxide Detectors - Amazon.com
Smoke Carbon Monoxide Detector, AEGISLINK Interlinked Combination Smoke CO Alarm, Battery Powered, Wireless Interconnected, Digital Display, SC-RF220, 3-Pack - Amazon.com
AEGISLINK Interlinked Smoke Carbon Monoxide Detector Combo, Smoke and CO Detector Battery Powered, Wireless Interconnected Smoke and CO Alarm, Digital Display, SC-RF200, 6-Pack - Amazon.com
Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators - Amazon.com
Siterlink Smoke Detector Carbon Monoxide Detector Combo with LCD Display, 2 in 1 Fire and CO Detector Alarm with LED Indicator & Test Button, Battery Operated, UL 217 & UL 2034 Standards, 1 Pack - Amazon.com
FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White - Amazon.com
Kidde Smoke & Carbon Monoxide Detector with Voice Alerts, Battery Powered, Combination Smoke & CO Alarm - Amazon.com
Smoke Carbon Monoxide Detector, AEGISLINK Interlinked Combination Smoke CO Alarm, Battery Powered, Wireless Interconnected, Digital Display, SC-RF220, 6-Pack - Amazon.com
3 Packs Smoke and Carbon Monoxide Detector Powered by Battery,Portable Smoke Detector Carbon Monoxide Detector Combo with Large LCD Display, Fire Alarm Smoke Detector for Home,Kitchen - Amazon.com
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators, 2 Pack - Amazon.com
Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning | Battery Operated | Model # KN-COSM-BA | 6 Pack - Combination Smoke Carbon Monoxide Detectors - Amazon.com
2 Pack 10 Year Battery Operated Smoke and Carbon Monoxide Detector, Portable Fire Co Alarm for Home and Kitchen (White) - Amazon.com
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators, 4 Pack - Amazon.com
Smoke and Carbon Monoxide Detector Powered by Battery with Digital Display, Dual Alarm Sensor of Smoke and CO,Easy to Install - Amazon.com
First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1 Pack, White - Combination Smoke Carbon Monoxide Detectors - Amazon.com
X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector, 10-Year Battery Powered Fire and CO Alarm, SC06-W, 3-Pack - Amazon .com
Amazon.com: 3 Pack Combination Photoelectric Smoke and Carbon Monoxide Alarm Detector with Digital Display; Battery-Operated Smoke Carbon Monoxide Alarm : Industrial & Scientific