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Electromagnetic Alarms Norman OK

Local resource for Electromagnetic Alarms in Norman. Includes detailed information on local businesses that provide access to Electromagnetic Alarms, keyless entry, garage door opener, driveway alarm, as well as advice and content on electromagnetic and electronic alarm system retailers and stores in your location.

United Security
(405) 364-2527
1301 Abbey Dr
Norman, OK
Guardian Interlock Of South Central Oklahoma Inc
(405) 364-3224
1008 N University Blvd
Norman, OK
Affordable Security & Protection
(405) 447-9099
302 E Gray St
Norman, OK
Boyd Security Systems
(405) 360-4224
211 E Gray St
Norman, OK
Advantage Audio Inc
(405) 579-1204
1815 W Lindsey St
Norman, OK
H & H Alarm Co Inc
(405) 366-6450
1829 Atchison Dr
Norman, OK
Network Alarm Services
(405) 364-1000
1829 Atchison Dr
Norman, OK
Sentry Protection Service Inc
(405) 292-4917
1732 Crestmont Ave
Norman, OK
S & A Services
(405) 366-2150
2215 W Lindsey St
Norman, OK
Sooner Security Of Norman Inc
(405) 364-8875
3200 Swan Hollow Dr
Norman, OK

Electromagnetic Detection

Most intrusion detection systems in use today utilize some form of electrical circuit running through wires, mechanisms, metalized tape or foil. If any part of the electric circuit running through two pieces of metal in the door locks or window lock mechanisms , or if a strip of metallic tape on the window glass is broken, it trips an alarm.

Circuits work well when an intruder attempts entry as one would expect, by opening a door or window. Burglars however, know how to use crowbars and other burglary tools to get through doors without disrupting these electrical circuits. In warm climate regions, houses may have thin walls, and entry can be gained by cutting through a wall. Tape or wire mesh in the wall would have to be torn or cut through to gain entry, thus tripping the security alarms .

Limitations occur in a circuit system because the gap or break can be bridged when the burglar breaks the tape or magnetic connection with a long wire or piece of metalized tape, prying open a door or window frame without setting off the alarm.

Magnetic Contact Circuits

Electromagnetic systems are often used on doors to apartment buildings and secure areas in government offices. They use a magnet in one sealed enclosure and a switch in another sealed enclosure and when the magnetic contact is broken, the alarm signal sounds.

In order to open a door protected with a magnetic door latch, a button has to be pushed by an attendant to allow the door to be opened by the visitor...

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