- You are thinking of getting a burglar alarm system for your house. You want to know how they work. How does someone sitting in another state know you have burglars in the first place, and how can they help when they're so far away? Here's how burglar alarm systems work.
- Alarms have alarm detectors installed on the windows and doors. These are small pieces which, when the window or door is closed, maintain an electrical connection. As soon as the connection is broken, it will trigger the system to call the company. The phone line is hooked up to the company for emergencies. The motion detectors work a little differently. The electronic eye, so to speak, sends a beam of light; if anything breaks that beam, the alarm also gets triggered. The main alarm box receives the signal from any of the protected zones and calls the company. Whether you trigger it or a burglar does is immaterial to the alarm.
- When the company receives the call that one of the zones has triggered the alarm, it calls the homeowner first. The homeowner has two codes. One is a code that the alarm was triggered by mistake, in which case no action is taken. The second code also says that nothing is wrong, when actually there is. This is to protect the homeowner from burglars who will probably leave them alone if they feel that the alarm has been turned off, which in both cases the company does. However, in the second event the company will call the local law enforcement authorities and ask them to intervene immediately. The police will then proceed to the house and investigate the matter. If, however, the homeowner has the pass codes mixed up and gives the wrong one to the alarm company, the police will just verify the whole situation and leave. But if there is a problem, the police will take matters into their hands.
- The codes used are numerical codes, so you can say there is no problem but still give the right numbers and it will trigger a response. In the case the homeowner is not home at the time and the phone is not answered, it triggers an automatic response to the police. If a burglar answers the phone, it will be responded to appropriately, as the burglar will not have the right code. Burglar alarms these days come with carbon dioxide detectors, too, in case of fire. Then the fire department will be informed.
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