Main Features:
Original Xiaomi Aqara smart door and windows sensor for daily security
ZigBee wireless connection
Trigger and alarm: it will light and ring when someone open the door, the light will automatically turn on when someone push the door
Away from home mode: If someone broke into, the bell will ring and the IP camera ( not included ) will take video
Intelligent sensors: open the window let fresh air into room
Small size, easy to install
Max. sensing distance: 22mm
Working temperature: -10 - 50 Deg.C
Working humidity: 0 - 95pct RH
Built-in 1pc CR1632 cell battery
Please download APP "Mi Home" from Apple Store or Google Play

Packing list:
Alarm X1PCS