USI MP116S Hardwired 10 Year Permanent Power Sealed Battery Photoelectric Smoke & Fire Smart Alarm
FIRST ALERT BRK CO5120BN Hardwired Carbon Monoxide (CO) Detector with Battery Backup , White - Household Alarms And Detectors - Amazon.com
First Alert Hard-Wired w/Battery Back-up Photoelectric Smoke and Carbon Monoxide Detector - Bed Bath & Beyond - 31996340
BRK Electronics SC7010B Hard Wired T3 Smoke/T4 Carbon Monoxide Photoelectric Alarm with Strobe - Vaughn Engineering
Hardwired Carbon Monoxide Alarms by USI
First Alert SC7010B Hardwired Photoelectric Smoke/Carbon Monoxide Alarm
First Alert 10-Year Battery Hardwired Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
First Alert BRK Hardwired Smoke and Carbon Monoxide Alarm - SC9120LBL