Contacts are designed to go into alarm when the magnetic field is interrupted. Contacts are usually installed on perimeter doors and/or windows leading to the outer perimeter of a given protection area. For example, a contact would be used to protect a front door, bedroom window, a garage storage room door, etc. However, a contact can also be used to protect a interior door where 24 hour protection is necessary.  For example, a safe room where access is restricted may have a contact on a interior door.  Pictured below are examples of surface mount contacts however these same principles also apply to recessed contacts as well.

1. Windows (contacts) are often not latched or secured properly. This causes the contacts not to align properly thereby resulting in a false alarm condition. Be sure that all contacted windows are seated properly in the window track. Contacts that are not properly aligned when latched will result in a false alarm condition. Be sure to visually inspect all surface mount contacts after any unexplained false alarm condition.

2. As a general rule contacts should resemble what you see here. The further apart they are the more likely a false alarm will occur.

3. Pictured to the right you will see a contact that is installed improperly. Contacts are designed to work within a measured gap. Homes use contacts to protect doors and windows. Be sure that the distance between the magnet and the contact does not exceed specifications. If it does then you need to have a larger/stronger magnet. If false alarms are still an issue then you should consult a alarm professional.

4. Alarm Contacts/Magnets are affected by metal. The metal deflects the magnetic field. If you have blinds that are in close proximity to the magnet then you will need to have the contact moved and or modified. A professional alarm contractor is highly recommended in these kind of false alarm issues. They need to come out to evaluate and perhaps repair and or relocate the contact so that metal interference isn't a issue. Contact one of our clients.

5. Contacts over time are damaged by exposure to moisture, intense heat, Etc. In addition, normal wear and tear during the opening and closing of the door/window will eventually cause the internal circuitry to go bad. After any false alarm generated by a contact you should check the contact for damage and for wear and tear. Contact a alarm professional if you aren’t able to determine the cause of your false alarms.