Welcome to our blog on how alarm systems work, whether you call them intruder alarms, burglar alarms or house alarms they all do the same job and that is to protect your property. For the purpose of this blog, I will try to keep it as non-technical and easy to follow as possible.
An intruder alarm system is made up of 4 basic components, the master control panel, the keypad, sensors, and a warning signal such as a bell box siren or strobe lights. You can read more about alarm systems below:
Domestic Intruder alarms here
Commercial Intruder alarms here
Let us look at each component in a little more depth.
Passive infra-red sensors or more commonly known PIR’s can detect motion by picking up infrared radiation. All living things emit infrared radiation, when an alarm is armed and an animal or human move into its sight it detects the infrared radiation that is emitted and sends an electronic signal to the master control panel to activate a warning signal.
PIR sensors mainly come with pet motion sensors, pet immunity settings slightly differ from a standard PIR, they allow small pets up to approximately 35 kg to be able to wander around without setting the alarm off.
Door contacts are installed on doors and windows, they consist of a sensor and magnet that is installed so that when the door/window is closed they sit next to each other and when the door is opened, they separate. When the alarm is set, and the doors and windows are shut if the magnet and the sensor come apart in the case of the door/window opening it will send a signal to the master control panel to activate the warning signal from the bell box.
Glass break detectors/shock detectors
Glass break detectors sense the high pitch sound waves of glass shattering due to the small inbuild microphones. The microphones listen for the high pitch frequency sound of breaking glass, when it hears the sound, it will trigger the alarm to activate.
Shock detectors detect any type of vibration on a window from banging the window to the window being broken. When a shockwave is detected, it will send a message to activate the alarm.
The alarm systems Bell box
At CJB Installation services our best sellers by far are the wireless alarm systems. They are neat and tidy and come without any unsightly wires which can be a pain especially if you have just decorated! It comes with a year’s free subscription to the Pyronix cloud, this allows you to arm/disarm, turn individual sensors off and be alerted if your alarm is activated from anywhere in the world from your smart phone. Giving you the ultimate peace of mind knowing that your home or business is safe and secure.
Pyronix wireless alarm systems
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