Chapter 12

Electronic Alarm Systems


In this chapter, readers are introduced to the five basic components in any alarm system and the three types of alarm sensors. The overall operation of an electronic alarm system, along with its potential problems and costs, are addressed. Lastly, the subject of sensors is elaborated upon to allow individuals to further grasp this aspect of security.


Alarm circuit; Annuciator; Control unit; Sensory device
Electronic alarm systems provide another element of defending a company’s assets from loss. An intrusion alarm system, which will detect unauthorized entries into a building, must be evaluated as to the cost of the alarm system versus the value of the items that are to be protected. For good overall ...

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