Questions and answers. FAQ.

the Choice of a burglar alarm

Sampling any system of a signalling, first of all, it is necessary to think of how expenses for its purchase correspond, assembly and installation with its reliability and value of that it{she} will guard. For the majority of us the most valuable are the own house, an apartment, the car and (or) a summer residence. To save them from fire and to save from theft it is possible many methods, but if the malefactor - the professional in the business nobody can guarantee reliability of protection completely. It is necessary to remember, that conditions of its (malefactor) of activity as anywhere, accustom it to care and sharpen skill. The error for it means to be caught on the left proofs.

The Unique method to outwit the experimental criminal there is an installation of such security system which it never till now would meet. Therefore it is necessary to approach to the organization of protection of the property creatively. Do not regret time for considering of the idea before spending even rouble for acquisition of any components. Depending on what functions will be assigned to system of protection, you can sample and compose various sorts of devices and sensor units in a single whole. Your system can use contact and magnetic sensor units, sensor units of movement and beaten glass, videoeyes with VTRs, disturbing buttons, electronic and code locks.

The Task of protection of premises needs to be solved complexly several times to not alter design of a room and the communications. All systems of protection and a signalling should be mounted in view of following factors:

• provisions of high reliability;
• provisions of the minimum cost;
• convenience of usage;
• exceptions of their possible influence against each other;
• possibilities of updating.

In tab. 1. 1 provisional variants of acquisition of systems of protection of premises are presented, estimated costs of its components are resulted. Besides the most logical is shown, from the point of view of protection, layout of all constituents of system: sensor units, control panels and devices of a dial. Remember, that safety depends on correctness of a choice and usage of safety devices in many respects personally yours and your property. Therefore at the equipment of premises security systems it is better to access to technicians.

The Fundamental methods of "operation" of room thieves are concluded in selection of keys or hack of a door or a window. Especially close it is necessary to be to inhabitants of the first and last floors of multi-storey houses. Theft from balconies, and also thefts with usage of climbing equipment now have become frequent. However the majority of criminals get into apartments through a door. In our apartments the adult the man can beat out a standard door a shoulder if it is insufficiently strengthened. Therefore protection of the property should be started from door locks and strengthening of an input door. The door is necessary for locking on two locks of different systems. Locks should allocate on distance not less than 50 sm from each other. Thus it is better to use unprofitable locks as they do not weaken a cloth of a door at installation.

Recently citizens give the increasing preference to metal doors which at correct installation provide a high degree of protection of a premise. Steel doors are released both domestic, and foreign manufacturers. On these doors are mounted, as a rule, on two locks.

At usage of electromechanical locks there is a possibility of full remote control by an input door. It can be made, using doorphone system. The combination of the electromechanical lock and such system will allow you, not coming off house affairs or not leaving a work station to clarify the person, intention of the visitor and to let in it, having pushed the button of opening of a door if you will wish it.

Full remote control by the lock can be carried out and by means of devices of limiting of access. Thus doors are equipped with devices of a dial (keypads) or readers. In the first case the user dials the personal identifier and at presence of access right opens doors. The code keypad also allows to enter a code of alarm in case of threat to the user from the extraneous person. In the second case special code contact-free either contact keys or cards are used.

Now systems of television supervision are not exotic. Cost of the most simple systems allows to use them as, for example, door eye. The most simple system of television supervision switches on a television camera and the screen monitor. Instead of the screen monitor it is possible to use the normal TV set, that reduces cost of system even more. Such system allows to watch space before an input door or on a ladder platform. Many television cameras are equipped by an infrared auxiliary illumination that enables to receive the qualitative map even at absence of lighting.

To be competent of questions of a choice and application of any security system, it is necessary to know varieties of systems released by the industry, their characteristics and a usage.

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