X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired), 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, Compliant with UL 217 & UL 2034 Standards, SC06 - Amazon.com
Aico Ei3028 Mains Interlinked Heat & CO Alarm - Screwfix
X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired), 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, Compliant with UL 217 & UL 2034 Standards, SC06 - Amazon.com
HiSpec Mains Powered Combination Heat and Carbon Monoxide Alarm with 10 Year Battery Backup | DIY at B&Q
14 Safety Essentials You Need in Your Home in 2023 | Reviews by Wirecutter
AICO Combined Smoke and Heat Alarm (Mains Powered)
Kidde Firex Hardwired Inter-Connectable 120-Volt Auxiliary Heat Detector 135 Degree with Battery Backup 21029895 - The Home Depot
Ei3028 Heat & Carbon Monoxide Alarm • EI Electronics
Kidde 10 Year Worry-Free Hardwired Combination Smoke and Carbon Monoxide Detector with Wire-Free Voice Interconnect 21028759 - The Home Depot
First Alert Hardwired Heat Alarm with Battery Backup, BRK Brands HD6135FB - Combination Smoke Carbon Monoxide Detectors - Amazon.com
Kidde KIR-OSHCD Optica Series Intelligent Multisensor Smoke, Heat and CO Detector