AEGISLINK Interlinked Smoke Carbon Monoxide Detector Combo, Smoke and CO Detector Battery Powered, Wireless Interconnected Smoke and CO Alarm, Digital Display RF Interlinked 6-Pack

RF Interlinked: These alarms use wireless radio frequency technology to both transmit and receive messages regarding hazards in the home so that when one alarm sounds, they all do, informing everyone of the emergency
2-in-1 Protection: This combination alarm is equipped with dual sensors to detect both smoke and CO dangers in a single unit, providing instant warning through its loud 85 dB sound
10-Year Sensor Life: The durable and long-lasting design ensures 10 years of stable, reliable performance for complete peace of mind, keeping your home and family safe for a decade
Complete Home Coverage: Up to 24 AEGISLINK RF wireless alarms (S-RF200/S-RF220/SC-RF200/SC-RF220) can be interlinked to fully protect your home, even across multiple stories
One-Button Control: Simply press the test/silence button on one of the alarms to test or silence the entire interlinked system
Informative LCD: A blue backlit LCD allows you to see any dramatic changes in CO levels, battery levels, and unit working status, providing you with an early warning of potential problems