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Electromagnetic Alarms Clackamas OR

Local resource for Electromagnetic Alarms in Clackamas. 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.

Tennatronics Alarm Co Of Oregon
(503) 656-6333
415 17th St
Oregon City, OR
Custom Security Systems
(503) 655-1165
117 6th St
Oregon City, OR
Blue Shield Security Systems
(503) 228-5433
PO Box 14344
Portland, OR
Crime Free Security Systems
(503) 205-4000
4815 SW Macadam Ave
Portland, OR
Pacific Window Tinting Inc
(503) 612-9000
19450 SW Cipole Rd #202
Portland, OR
Arc Industries Inc
(503) 656-2870
208 Myrtle St
Oregon City, OR
Central Electronic Alarm Inc
(503) 257-9696
8435 SE Stark
Portland, OR
Action Technology Systems LLC
(503) 231-1992
835 SE 17th Ave
Portland, OR
Security System Installation
(503) 241-2939
1020 NW Naito Pkwy
Portland, OR
Ace Security
(503) 224-9351
621 NW 23rd Ave
Portland, OR

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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