3PC Interlinked Smoke Alarms (S04-R8) with Wireless Control Unit

Certifications: Compliance Standard: EN 14604 Pre-Connected Setup Ready to use with hassle-free wireless pairing. 10-Year Battery Life Built-in lithium batteries provide maintenance-free protection for 10 years. Expandable Protection Supports up to 24 interconnected devices for larger homes. Package List: 3 interlinked smoke alarms and 1 control Unit Enhanced Control with Wireless Unit: Combine wireless interlinked smoke alarms with an intelligent control unit to create a more interactive safety system.