X-Sense Wireless Interconnected Carbon Monoxide Alarm Detector, Replaceable Battery-Powered CO Detector with Easy-to-Read LCD, Complies EN 50291 Standard, CO03D-W, Link+

Full Home Alerts: Interconnect all CO alarms throughout your home for comprehensive protection; if one alarm is triggered by carbon monoxide, all CO alarms will sound Customizable Wireless Network: Alarms in a multi-pack are already interconnected; easy to connect multiple CO detectors to your custom wireless safety network Advanced Figaro Sensor: The X-Sense carbon monoxide alarm accurately detects and instantly reacts to CO levels in the air Replaceable Batteries & Low Battery Warning: 3 replaceable AA batteries provide constant protection against CO, even during power outages; notifies you when it’s time to replace the batteries Expandable Wireless Network: Up to 24 X-Sense wireless detectors can be interconnected via radio frequency technology ATTENTION: ONLY detects carbon monoxide (CO), NOT carbon dioxide (CO₂)