First Alert Brk 10-Year Battery 6-Pack Battery-operated Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
BRK CO5120BN 120 Volt with 9 Volt Battery Backup Carbon Monoxide Detector
First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm
BRK CO5120BN Carbon Monoxide Alarm - Detects CO Hazard - 120V Wire-in — Bulb Center
First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector with Voice Alert in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com