Large LOUD ALARM: Door and window sensors are designed to detect entry and help prevent children from leaving the house unnoticed. Ideal for securing home offices, garages, dorm rooms, or apartments, indoors or outdoors. The alarm is ble from another room, providing immediate alert. For safety, install out of reach of young children. Suitable for use on sliding doors, windows, drawers, and refrigerators. Helps monitor entry points and provides security for doors and windows in residential or commercial spaces. EASY INSTALLATION: Clean the surface, peel off the adhesive backing, attach the alarm to the door and the magnetic strip to the door frame. Installation is quick and simple. Securely mounts with adhesive tape. Can be used on various entry points. Suitable for homes, apartments, mobile homes, offices, hotel rooms, and garages. Note: Measurements are manually taken; allow 1-3 cm variation. Due to lighting and display differences, slight color variations may occur. Actual product may vary slightly in appearance.