Door Alarm
The Reliable Companion
Door Alarm - these two simple words put together create a sense of reassurement, safety and security all clubbed together. Most Grannies’ stories almost always consisted of Ghosts, Robbers and Good men who used their intelligence and gadgets to protect us. Today’s world is no different. The bad men are still lurking around awaiting their moment of glory. The good news, however, is that the Good men and their gadgets like door alarms are also present and they have got even better.
The best method to cure a disease is to prevent it through denial of entrance. Similar methods of operation are applicable in other walks of life including home safety. Thus the concept of a smart Door Alarm comes as a huge relief following the spate of gory details that the house robbers and attackers leave. The very concept of a Door Alarm in place or in conjunction with the conventional Door Bell/ knock-knock is very reassuring.
Breaking their Backs
One really wonders as to where the intruders would stop and would we ever be able to eliminate them completely from our minds and lead a peaceful night or a vacation. Installing the best Lock and Door Alarms is obviously the best solution but what are the basic requirements of a door alarm? What types of door alarms are available? How do I choose the best suited door alarm for myself? There are various types of queries that come to one’s mind upon giving a serious thought to door alarms and installation of door alarms at home.
One look at the present technology market and the available gadgets just exposes the tip of the proverbial iceberg of door alarms and safety devices. Starting with personal safety right upto intrusion detection and indication alarming, the field of Home Security has a lot to offer to us. Let us then begin our journey into this intriguing world of door alarms and other security devices.
The Basics Of Door Alarms A close look at the doors and windows of our homes reveal that apart from the sturdy lock, if any arrangement can warn us of opening / closing / breaking of entry points, it would be possible to reduce the events of thefts and intrusion by more than 80%. The other 20% events take place either when the door is left wide open or when a known intruder has the better of us. It is most important to know when the door is opened and closed. Door alarms of most basic types using magnetic principles are the most useful in these types of situations.
Magnetic Door Alarms utilize the principle of magnetism, wherein magnets generate flux which can be continuously monitored by a small battery powered device kept in close proximity. The door alarm goes off the moment the door is opened and the device stops sensing the magnetic flux. A reverse door alarm is also possible which sets off upon sensing the closing of doors / windows. Now we know the possibilities or methods of detection of intrusion are many more viz. through motion, breakage of glass, opening and closing of openings, crossing of paths and even shifting of objects.
Varieties of Door Alarms
Now that we are on the course of collusion with the intruders why not clear our minds regarding the requirement of our door alarm? Are you looking for a Human Motion Sensing Door Alarm or Breakage / Shattering glass door alarm or Position Sensing of Windows / Door alarm? There are numerous methods to activate the door alarms once the signal of intrusion has been initiated. Providing a door alarm for each door or window which can be compromised viz. Front door, back door or side door is a good option. These door alarms are pretty cheap due to bulk production and lower technology costs and also attach easily or can also be screwed on the door.
A very interesting variant of door alarm pretends to be a dog and even barks ala an angry German Sheppard when any intrusion is detected. This barking dog door alarm has the ability to sense the intrusion attempts and movements even through thick walls. The electronic door alarms which set on or off through closing or opening of circuit built near the door / window are also very popular. The closed-circuit door alarm systems and the open-circuit door alarm systems are also available. A very novel and simple approach uses placement of a small switch between the door wedges to await opening of doors. The opening action releases the small switch and the door alarm is set off.
Common sense coupled with a little help from the door alarm technologies available can prevent majority of thefts. All we need to do is to think like any intruder and act accordingly by strategically placing a door alarm to detect these intrusions for the safety and security of our family and our homes.
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