X-Sense Wireless Interlinked Combination Smoke and Carbon Monoxide Alarm, Smoke Alarm for Home with LCD Display & 10-Year Battery, Link+ Series, SC07-W, 3-Pack RF Interconnected Model 3-pack

Attention: The SC07-W Interlinked Smoke and Carbon Monoxide Alarm is not compatible with SBS50 base station and does not support any APP functionality
Hear An Alarm From Anywhere: If one smoke and carbon monoxide alarm detects smoke or dangerous CO levels, all wireless interlinked units will activate, ensuring the earliest possible warning
Wide Coverage For Full Home Protection: Up to 24 X-Sense Link+ devices can be interlinked to create a wireless safety network for your entire house
2-In-1 Protection: Equipped with both a photoelectric smoke sensor and an electrochemical CO sensor, this smoke alarm and carbon monoxide detector provides reliable protection against both smoke and CO
Built-In 10-Year Battery: Features a built-in 10-year lithium battery, so you’ll never need to worry about replacing batteries during the lifetime of the unit
Informative LCD: Displays real-time CO levels from 30–999 ppm (parts per million) taken from the surrounding air, as well as battery level and working status