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Door Alarms Jackson MI

Local resource for door alarms in Jackson. 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.

Private Eyes Investigation
(517) 536-0774
PO Box 56
Napoleon, MI
 
Jackson Key Works
(517) 782-5624
1516 E Michigan Ave
Jackson, MI
 
Jim's Fire & Safety Svc
(517) 782-0128
542 Jacqueline St
Jackson, MI
 
Safety Systems Inc
(517) 782-9463
112 Connable St
Jackson, MI
 
ADT® Home Security
(888) 542-4123
514 E Mitchell St
Petoskey, MI
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

Spears Fire & Safety Inc
(517) 782-8229
1116 Wildwood Ave
Jackson, MI
 
Great Northern Sentry Co
(517) 783-2225
104 Francis St
Jackson, MI
 
Bo's Keys & Locksmith
(517) 783-6313
504 W North St
Jackson, MI
 
Home Protection Centre Inc
(972) 733-7200
16525 Addison Road
Addison, MI
 
ADT® Home Security
(888) 542-4123
23514 Groesbeck Hwy
Warren, MI
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

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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