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Door Alarms Kalispell MT

Local resource for door alarms in Kalispell. 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.

Peterson Alarm Service
(406) 755-8478
235 Buckboard Lane
Kalispell, MT
 
Crick's Security Inc
(406) 752-1028
4170 US Highway 2 E
Kalispell, MT
 
National Guard Svc
(406) 257-2061
2989 US Highway 93 N
Kalispell, MT
 
Alert Security & Investigation
(406) 756-1390
213 Main St
Kalispell, MT
 
Kalispell Center Mall Security
(406) 751-5062
20 N Main St
Kalispell, MT
 
Sound Decision
(406) 755-7800
75 Aspen Ct
Kalispell, MT
 
Rsjm Enterprises
(406) 755-4604
PO Box 786
Kalispell, MT
 
Norco
(406) 752-4804
2555 US Highway 2 E
Kalispell, MT
 
Big Sky Fireout Systems
(406) 257-2926
1203 Ashley Lake Rd
Kalispell, MT
 
Grizzly Security Armored
(406) 257-1636
PO Box 1682
Kalispell, MT
 

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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