This product is easy to install, and you can simply paste the main accessory on the door and door frame, or two Windows, and
align (between 0.5 and 1.5 cm). When someone opens the door or window illegally (the relative position of the main accessory
changes), the alarm can be issued with a strong alarm, warning the intruder to leave. When you want to open the door, the window
can be controlled by the switch. It is suitable for burglar, such as residential, office and shop counters.
align (between 0.5 and 1.5 cm). When someone opens the door or window illegally (the relative position of the main accessory
changes), the alarm can be issued with a strong alarm, warning the intruder to leave. When you want to open the door, the window
can be controlled by the switch. It is suitable for burglar, such as residential, office and shop counters.
Note:Battery not included