Anti-disassembly Alarm Notice: When Someone Dismantles The Equipment, You Will Receive An Alarm Notice In Time To Ensure Safety. Create A Linkage Scene: Create A Smart Scene On The Smart Life App, And The Smart Light Will Turn On Automatically When The Door Is Opened. Receive Alarm Reminders Remotely: When A Stranger Breaks Into The Door, The Door Sensor Can Detect It And Send You Information Through The App. Mini/groove Design: Groove Design Makes The Product More Textured And Refined. Multi-scene Application: Stick Installation, Which Can Be Installed In Various Doors, Windows, Drawers, Etc., Without Destroying The Home Structure And Appearance. Low Battery Alarm Reminder: When The Battery Is Low, The Sensor Will Push Information Through The App To Remind You To The Battery In Time. Colour:white Material:abs Package Contents: 1 Set * Smart Door Sensor(without 1 X Cr2032 Battery) Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May