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Door Alarms Des Moines IA

Local resource for door alarms in Des Moines. 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.

ADT® Home Security
(888) 564-9618
6200 Thornton Ave Ste 140
Des Moines, IA
Description
Get a Security System for Just $99! Protect Your Home and Call ADT® Home Security Today.
Phone Hours
MON - FRI 9:00AM - 11:00PM; SAT 9:00AM - 6:00PM; SUN CLOSED

Akal Security Inc
(515) 288-8423
123 E Walnut St
Des Moines, IA
 
Protex Central Inc
(515) 252-9932
3305 104th St
Des Moines, IA
 
Capital Fire Equipment Co
(515) 280-8321
718 NE Broadway Ave
Des Moines, IA
 
Iowa Fire Equipment Co
(515) 265-8030
2800 Delaware Ave
Des Moines, IA
 
ADT® Home Security
(888) 542-4123
10401 Hickman Rd
Des Moines, IA
Description
Get a Security System for Just $99! Protect Your Home and Call ADT® Home Security Today.
Phone Hours
MON - FRI 9:00AM - 11:00PM; SAT 9:00AM - 6:00PM; SUN CLOSED

Guardsmark Llc
(515) 243-3155
206 Des Moines St
Des Moines, IA
 
Demilune
(515) 727-2160
2204 Ingersoll Ave
Des Moines, IA
 
Ci3
(515) 558-9300
6200 Thornton Ave # 190
Des Moines, IA
 
Active Alarm Services Inc
(515) 287-0500
3130 Druid Hill Drive
Des Moines, IA
 

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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