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Electromagnetic Alarms Urbandale IA

Local resource for Electromagnetic Alarms in Urbandale. 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.

Personal Security Systems Inc
(515) 252-0688
5114 Twana Dr
Des Moines, IA
 
Active Alarm Services Inc
(515) 287-0500
3130 Druid Hill Drive
Des Moines, IA
 
Ci3
(515) 558-9300
6200 Thornton Ave # 190
Des Moines, IA
 
Capital Fire Equipment Co
(515) 280-8321
718 NE Broadway Ave
Des Moines, IA
 
Guardsmark Llc
(515) 243-3155
206 Des Moines St
Des Moines, IA
 
A Plus Communications & Security
(515) 645-2345
5609 NE 22nd St
Des Moines, IA
 
Hub Tower Guards Phone
(515) 244-3206
699 Walnut St # 100
Des Moines, IA
 
Wackenhut Corp
(515) 471-5056
1922 Ingersoll Ave
Des Moines, IA
 
Protex Central Inc
(515) 252-9932
3305 104th St
Des Moines, IA
 
American Security Llc
(515) 245-4370
2801 Bell Ave
Des Moines, IA
 

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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