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Alarm System Components
Alarm system components ensure your building is protected
At Contact Security we supply and install a wide range of Alarm system components to ensure that your home or business is fully protected from intruders. Find out more about each of these components below.
Burglar Alarms Oxford CUSTOMISE YOUR INTRUDER ALARM SYSTEM TO SUIT YOUR APPLICATION
Oxford Burglar Alarms WE INSTALL A WIDE RANGE OF INTRUDER ALARM SYSTEM COMPONENTS
Burglar Alarm Oxford ALARM COMPONENTS ARE SUITABLE FOR COMMERCIAL & DOMESTIC PROPERTIES
Oxford Burglar Alarms MAKE SURE YOUR HOME OR BUSINESS IS FULLY PROTECTED FROM INTRUDERS
Burglar Alarms Oxford
Oxford Burglar Alarms Protect your premises from intruders with an intruder alarm
 
 
 
 
 
 
More about the components
Customise your intruder alarm system with a range of components to suit your application.
 
Door
Contacts

Door Contacts are the simplest form of protection for a building. Door contacts consist of two elements, the reed switch on or in the frame and the magnet. When the magnet is close to the reed switch it will send a “closed” signal to the alarm panel to tell it the door is closed and when the magnet moves away from the reed switch it sends an “open” signal.

There are two types of Door Contacts:

Flush Door Contacts - These are installed within the frame and the door. The reed switch (receiver) is located within the frame and the magnet is located within the door itself.

Surface Door Contacts - These are installed on the frame and on the door and are simpler/quicker to install than the flush contacts.

Oxford Burglar Alarms
 
Dual Technology
Detector

Dual Technology Detectors combine PIR technology as explained above with Microwave Technology. Microwave detection works on the principle of the Doppler effect. It's applied to the transmission of an ultrasonic signal and the comparison of the return or echo to what was transmitted. Any difference is caused by Doppler effect. Something was moving toward or away from the transmitter of the detector, and this caused an "apparent" change in the frequency of the echo. And that will set this section of the detector off in alarm. In order for the whole detector to send an alarm to the control panel is for both technologies to activate within 30 seconds of each other.

Burglar Alarm Oxford
 
Passive Infra Red
Detectors (PIR)

The most common motion detectors used with security systems are passive infra-red (PIR) motion detectors, sensing both motion and heat to detect an intruder. They have a photo-diode that is sensitive to the heat radiation frequencies of the human body, and a special lens that looks at 20 - 30 narrow fields within the protected space. They 'see' the temperature of the background, and any change to this temperature is considered to be a suitable trigger. A person (or animal) moving in the space will move in and out of the fields of view, giving infra-red images to the detector in a 'now you see me, now you don't' pattern.

Burglar Alarm Oxford
 
Vibration Detectors
(vipers)

Vibration Detectors are used to protect the perimeter windows and doors of the building. They are mounted on the window or door frame and provide an early warning from intruders attempting to break into your property. They detect against violent physical attacks to the window. Vibration sensors allow you arm the building even when you are inside and allow you to quickly pinpoint where someone would be trying to gain access to the building.

Burglar Alarm Oxford
 
Break glass
Detectors

A glass-breaking sensor is a type of sensor that is mounted in a business or residence. The sensor is very sensitive to certain sound frequencies, particularly glass breaking and wood splintering. There are two main types of glass-breaking sensors: shock sensors and acoustic sensors. Shock sensors detect the vibrations generated by breaking glass, while acoustic sensors are triggered by sound waves.

Burglar Alarms Oxford
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