X-Sense Smart Smoke Detector Fire Alarm with Advanced Photoelectric Sensor, Wi-Fi Smoke Detector, App Notifications with Optional 24/7 Professional Monitoring Service, XS03-WX, 1-Pack

Real-Time Notifications: Receive instant app notifications on your phone when an alarm is triggered or a device status changes
Fast Fire Dispatch Within Just 3 Seconds: As a subscriber to the Protect+ Premium which provides 24/7 professional monitoring service, when an alarm is triggered, you will receive a message from the monitoring center within 3 seconds to verify the emergency. After the emergency is verified, a fire truck will be dispatched immediately
Easy Installation: Install this alarm in only minutes with the provided screws or adhesive tape, then add it to the app to get started