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Door Alarms Grand Forks ND

Local resource for door alarms in Grand Forks. Includes detailed information on local businesses that provide access to portable door alarms, burglar alarms, door wedge alarms, door knob alarms, vibration sensors, and home security systems, as well as advice and content on security door stops.

Ipc International
(701) 746-7200
2800 S Columbia Rd
Grand Forks, ND
 
Simplex Grinnell
(701) 746-4191
830 S 48th St # 8
Grand Forks, ND
 
Newvision Security Systems
(701) 746-0505
402 University Avenue
Grand Forks, ND
 
General Security Svc Corp
(701) 237-3252
112 University Dr N # 316
Fargo, ND
 
Dakota Security
(701) 282-0550
405 Main Ave W # 1h
West Fargo, ND
 
Access Security
(701) 775-8199
1726 S Washington St
Grand Forks, ND
 
Grand Forks Fire Equipment
(701) 746-6463
921 N 3rd St
Grand Forks, ND
 
Pinnacle Home Security -Grand Forks
(505) 750-9448
3101 S 42nd St
Grand Forks, ND
Alternate Phone Number
5057509448

Ipc Intl
(701) 250-8031
600 Kirkwood Mall
Bismarck, ND
 
A-1 Fire Svc
(701) 492-8939
794 Main Ave W
West Fargo, ND
 

Door Alarms

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Doors can utilize magnetic contact sensors to detect when a door is opened. The sensor mechanism is housed in the switch side of the sensor and a magnet is housed in the other half. Most door alarms utilize a contact switch, which has two metallic parts that must stay in contact when the sensor is armed. In order for a door to be slid or swung open, the mechanism's metallic contacts lose contact with one another. One half of the door sensor is attached to the fixed side of the doorway, and the other is attached to the movable door. When the door is opened the two parts of the mechanism are separated and the alarm signal is sent.

These mechanisms use a strong magnet that can maintain magnetic contact even when the door is opened slightly. This makes it possible to leave a door open to allow airflow between rooms, yet still have all the protection of armed door alarms.

Electromechanical door locks are powerful electrified lock mechanisms which keep them from being opened. They are an important form of security in commercial properties but can also be used in home security systems. These systems often integrate a magnetic contact sensor so if by chance the door should be opened, an alarm would be activated.

Learn more about home security systems .

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