Remote control: through remote phone dial-up, many operations could be realized, like defense, withdrawal and on-site monitoring by the console in the remote control form.
Magnetic sensor switch detects entry protecting your home or office.
Use the the double-side adhesive tape to fix the main unit at the side of the door/window.
Attach the bar magnet to door frame/window frame with the arrow aligning with the reference line of the main unit.
Test the setup by switching the system's switch to ON position of the main unit and see whether the alarm can be triggered by opening the door/window.