Meross Carbon Monoxide Detector, EN50291, 2 Pack LCD Digital Display, Carbon Monoxide Alarms for Home with Batteries, Silence Function, Free Standing, Loud Alarm

X-Sense Smart Smoke Detectors, Carbon Monoxide & Heat Alarms With Base Station: 2 Smoke / 1 Heat / 1 Co

X-Sense Smart Smoke Detectors, Carbon Monoxide & Heat Alarms With Base Station: 5 Smoke / 1 Heat / 1 Co

X-Sense Smart Smoke Detectors, Carbon Monoxide & Heat Alarms With Base Station: 4 Smoke / 1 Heat / 1 Co

X-Sense Smart Smoke Detectors, Carbon Monoxide & Heat Alarms With Base Station: 3 Smoke / 1 Heat / 1 Co

Kidde 10Sco Twin Pack - Combined Smoke And Carbon Monoxide Alarm

FireAngel 10 Year Carbon Monoxide Alarm - Replaceable Batteries FA3313 Twin Pack (2 Pack)

2 in 1 Version WiFi Function Tuya And Smart Life Smoke Detector Sensor & Carbon Monoxide Co Gas Detector Smoke Fire Soun

Home Smoke Detector Carbon Monoxide Detection Alarm Real-time Monitoring LED Display Sound Light Alarming Troubleshootin

Sensitive Home CO Sensor Detector Wireless CO Carbon Monoxide Poisoning Smoke Gas Sensor Warning Alarm Detector LCD Indi

X-Sense Wi-Fi Combination Smoke and Carbon Monoxide Alarm for Home with Voice Alerts, Wireless Interlinked Voice Alarm with SBS50 Base Station, XP0A-MR11

VARTA Power on Demand 9V Block (10-pack - smart, flexible and powerful, for mobile end devices - e.g. for Smart Home devices, smoke detectors, fire alarms)

VARTA Longlife 9V Block 6LR61 Alkaline E-Block Batteries (2-pack) - Made in Germany - ideal for fire alarms, smoke detectors, tuners (Packaging/design may vary)