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Door Alarms Sioux City IA

Local resource for door alarms in Sioux City. 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) 542-4123
3229 N US Highway 75 Ste 2
Sioux City, 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

Securitas Security Svc USA Inc
(712) 279-8748
600 4th St # 301
Sioux City, IA
 
Traum Security Systems
(712) 255-1675
Po Box 876
Sioux City, IA
 
Sioux City Night Patrol
(712) 252-3003
706 8th St
Sioux City, IA
 
Guardsmark Inc Llc
(605) 232-5193
1317 River Dr
North Sioux City, SD
 
Per Mar Security Svc
(712) 277-1521
401 Douglas St
Sioux City, IA
 
Sigler Fire Equipment Co
(712) 255-5929
121 S Rustin St
Sioux City, IA
 
Bekins Fire & Safety Svc
(712) 258-1080
3400 Highway 75 N
Sioux City, IA
 
Dsi Security Svc
(402) 987-2533
1414 Broadway St
Dakota City, NE
 
First Class Security
(712) 943-1041
206 1st St
Sergeant Bluff, 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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