Alarm Systems - SE - 0106 Household Door Window Ultra-thin Circular Vibration Sensor Alarm

Vibration induction, strong shock. The small size does not occupy space, the shape is simple and generous, the operation is simple, the installation is simple, no tools are needed, and the application range is wide.
Built-in 3 LR44 button batteries for durability. Shipped with battery.
Instructions:
Warning status: Stick the product to the glass window, turn the switch to the ON position, the red LED will flash, and after about 3 seconds, you will hear the BI sound and enter the alert state.
Alarm status: In the alarm state, once the product is shaken, it will alarm immediately.
Alarm release: The alarm will stop automatically for 30 seconds or the switch will be turned OFF.