Extremely loud (90dB), an ideal guardian against the unwanted intruder whether you are in or out, work as a baby guard
Portable enough to take with on business trips and vacations, keep yourself and your property safe and security
Other great uses are for your cupboard, shed, garage, toolboxes, etc. to prevent potential wandering sneakers
The intelligent furnishing with handsome, decent appearance, also be economical and practical
Easily mounted to windows or doors with included double sides adhesive tape, no tools required

Magnetic sensor switch detects entry
Super loud 90 dB alarm
Handy ON/OFF switch: in the state of "ON", the sensor will emit the alarm signal as long as someone opens your door or window further than 1-1.5 cm
Warning door/window stick
Powered by 3 pcs 1.5V LR44 button cell
Double side built in adhesive tape on both the stick and the main sensor enable installation without any cord or tools

Operation Instruction:
Peel off the double sides adhesive tape, attach the main sensor on the door/window and attach the stick adjacent the main sensor on the door/window frame
Test the setup by switching on the system of the main unit and see whether the alarm can be triggered by opening the door/windows

1 x Magnetic sensor 
1 x Warning door/window stick
3 x LR44 button battery