Alarm
There are many reasons for installing an alarm system in an area. One of the reasons is the reduction of probability of theft taking place, but also the reporting of the event to a monitoring station.
Security systems operate with the so called zones, that are from electrical point of view earth loops. Each zone can have certain characteristics such as being a 24-hour one, with entry/exit delay or direct. In each zone the installer connects detectors of movement, magnetic contacts in the doors, glass break detectors, smoke (fire), Carbon dioxide, humidity, etc based on the needs of the protected area.