Door and Window Alarm: You can easily recognize your doors, windows, cabinets, drawers or anywhere you want to be notified when they are opened or closed. Protect your home and family. App ControlledWhen you leave the house, you will be notified when the door/window opens or closes, so you can find out the intruder on time. Family Sharing: Yeuri you can share the device for your family members and view the progress of sensor activities. Plug and Play No complex installation tools required. The sensor can be installed in a few steps with double-sided tape or screws. Download a tuya or Smart Life APP from GooglePlay or App Store to add the device and recognize your door/window status. Low Battery Alarm: When the power is low, the sensor will send alerts to remind user to replace batteries in time. Specifications: Main Color: White. Main Material: ABS. Power supply: 2 AAA batteries (not included). Contents: 1 set of door sensor. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store