First Alert Hardwired Heat Alarm with Battery Backup, BRK Brands HD6135FB - Combination Smoke Carbon Monoxide Detectors - Amazon.com
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
EI3028 Multi-Sensor Heat & CO Alarm | Aico (EI3028)
Ei3028 Heat & Carbon Monoxide Alarm • EI Electronics
2 In 1 Smoke and Carbon Monoxide Detector, Combination Smoke & CO Alarm With LCD Display LED Lights and Sound Alert,Fire Protect - AliExpress
Kidde Firex Hardwired Inter-Connectable 120-Volt Auxiliary Heat Detector 135 Degree with Battery Backup 21029895 - The Home Depot
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
Combined detector FD3060 – Fire alarm equipment manufacturer
The Difference Between Smoke, Heat And Carbon Monoxide Detectors | CEF
First Alert SCO5CN Battery Operated Combination Smoke and Carbon Monoxide Alarm
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
Honeywell 5800COMBO - Smoke, Heat and CO Detector - Alarm Grid
HiSpec Mains Powered Combination Heat and Carbon Monoxide Alarm with 10 Year Battery Backup | DIY at B&Q
Kidde KIR-OSHCD Optica Series Intelligent Multisensor Smoke, Heat and CO Detector
Initiating Devices: Heat Detectors, CO Detectors, Multi-Sensor Detectors