Its operation is based on the fact that the motion sensor detects the person and sends the signal to the door software, which performs directional detection and recognizes the direction of passage within the radar field through microwaves.
Sensor that forms a closed circuit by a magnet and a very sensitive contact that when separated, changes the state causing an alarm jump. It is used in doors and windows, placing one part of the sensor on the frame and another on the door or window. It is equipped with an inertial sensor to detect knocks on doors, walls and windows. They detect the attempt to force its opening.
It can be complemented with a passive infrared sensor motion detector, which recognizes the infrared energy emitted by the heat of a body, and has been designed to activate the alarm only when there is a sudden increase in energy levels.