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Electromagnetic Alarms Mason City IA

Local resource for Electromagnetic Alarms in Mason City. 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.

Bell's Fire Stop
(641) 424-3824
85 Sunny Cir
Mason City, IA
 
On Line Security Systems
(815) 626-2754
604 West 18th Street
Rock Falls, IA
 
Dictograph Security Systems
(805) 643-8605
6544 Beene Road
Ventura, IA
 
Continental Alarm Detection Co
(563) 823-0106
1216 W 76th St
Davenport, IA
 
Per Mar Security Services
(563) 556-2404
990 Cedar Cross Rd
Dubuque, IA
 
Short's Federal Fire Equip Co
(641) 423-4200
902 N Federal Ave
Mason City, IA
 
Curtis Security Systems
(641) 357-7001
2211 North Shore Drive
Clear Lake, IA
 
Simpson Security Services
(319) 354-6177
123 Stevens Dr
Iowa City, IA
 
Reference Security Solutions
(563) 386-9111
1120 E Kimberly Rd
Davenport, IA
 
Per Mar Security Services
(319) 365-4800
510 1st St Sw
Cedar Rapids, 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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