X-Sense Wi-Fi Smoke Alarm for Home with SBS50 Base Station, Smart Fire Alarm

Expand Your Smart Home Your Way: Up to 50 alarms including smoke alarms, carbon monoxide alarms, and more can be added to the SBS50 base station for an interconnected system, so if one device sounds, all will; its 1,700 ft (500 m) open-air transmission distance ensures stable communication between devicesReal-Time Push Notifications: Monitor your home from anywhere and receive real-time push notifications for alarms, low battery, fault, and more via the X-Sense Home Security app; you’ll also be notified when the danger has passed