TechRise Door Window Alarm Sensor, 2-in-1 Alarm & Chime, Mini Door Sensor for Home Security, 3-level Volume Control, Shed Door Sensor for Child Security, House Shop Safety, 3 PCS

Multifunctional door window alarm: The home security alarm has 3 modes: Chime mode, which emits a "ding dong" prompt sound when the magnetic strip is pulled open; Alarm mode, which emits a continuous alarm sound of up to 100 decibels when the magnetic strip is pulled open; OFF mode turns off the alarm, and there are 3 volume levels for you to choose from.
Mini Home Security Parameters: The home alarm measures 99x34x13mm, small and thin, the alarm can monitor your doors, windows, cabinets and drawers. Comes with double-sided tape for easy installation.
Door and window security protection: Door and window alarms can monitor entrances and exits to ensure the safety of you and your family. At the same time, it can ensure that children stay away from cupboards or swimming pools, and monitor the absent-mindedness, sleepwalking and waking behavior of the elderly to prevent any potential dangers.
Smart Design: Once the door alarm and magnet are separated by more than 0.78 inches (2