X-Sense WIFI Interconnected Smoke Detector Kit, FS31 Smart Smoke Alarm with SBS50 Base Station

X-Sense FS31 Interconnected Smart Smoke Alarm Kit with 5 years replaceable battery and advanced photoelectric sensor. Controlled by X-Sense Home Security App and 100dB loud alarm base station. Real-time notification and silence alarms via the App at your fingertip. Wireless interconnected smoke detectors can connect up to 24 Link series alarms.