The Movement and Sound Detection Application, “AEL-AD31”, is an application designed to understand the operation of the most common intrusion detector. The intrusion detector of this application consists of a device made up of magnets, which can be located in windows or doors. So when it detects the opening of a window or door, it sends an alarm signal.

It can also send the alarm signal when it detects sound above a threshold. To check the operation of this device, the application includes a bell, two halogen lamps, two switches with light, two incandescent lamps and two pushbuttons with light. In other words, the sensor can be connected to any of these elements to simulate real situations, so the student can understand its operation.