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Door Alarms Waterloo IA

Local resource for door alarms in Waterloo. 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.

Always Best Care Of The Cedar Valley, Inc.
(877) 292-2126
Po Box 1952
Waterloo, IA

Data Provided By:
Advanced Wiring Solutions
(319) 233-3349
106 E 4th St
Waterloo, IA
 
Pro Shield Fire Protection
(515) 955-2553
1033 Wilbur Ave
Waterloo, IA
 
Champion Alarm
(319) 342-4221
1024 Poplar Street
La Porte City, 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

Superior Fire Protection Equip
(319) 232-6863
915 Commercial St
Waterloo, IA
 
Metro Security & Investigation
(319) 233-6777
110 Hubbard Ave
Waterloo, IA
 
Superior Security Svc
(319) 234-6680
PO Box 132
Waterloo, IA
 
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

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

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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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