One of the main securities in our home. They "keep an eye" out what is happening around the home. If the household is sleeping or on a holiday, and can not see if anyone approaches the home but with these detectors it is paying attention to every little detail. These little detectors take a note from any kind of movement or changes happening in the area. Connecting them through Paigo with other devices, they send a signal to the cameras to record a video or breach the alarm if necessary.