El locks for the front metal door. Electronic locks on the door: the choice and features of the device

Castle on front door must remain reliable and durable. At the same time, a high degree of ease of use is also desirable. Classical mechanical structures have several difficulties with this moment, since a key and the direct presence of a person next to the keyhole are required to open. An alternative would be an electric lock on the door, which can be integrated into centralized access control systems, controlled remotely, which is convenient for owners of an apartment or house.

Device principle

The most common designs with an electromechanical lock. It is fundamentally similar to the usual one, and the main difference is the control of the mechanical system of the electrical component. To activate the latter, one of the following options can be used:

• keyboard code;
• key;
• magnetic card;
• button on the control panel.

Once electronic device receives a signal, the lock is unlocked. This design provides the following benefits:

• independence of the system from the availability of electricity (this is a big drawback of conventional electromagnetic structures);
• the ability to open the electric lock " the classic way» with his bitterness;
• ease of incorporating an electric locking mechanism into the control system " smart House».

Types of electric constipation

Locking mechanisms can be classified according to the principle of device and action. The first parameter implies the division of electric locks into two groups:

• Overlays that are installed on door leaf do not require opening. Another advantage is the presence of a forced opening device, which is important in the absence of power supply.
• Mortise electric locks can be connected to the intercom, allow you to install additional deadbolts to increase the reliability of the entire structure.

The principle of operation of the electric lock determines the method of locking and unlocking the locking mechanism. According to this parameter, all options are divided into three groups:

• electromagnetic;
• electromotive;
• electromechanical.

Electromagnetic lock

The principle of operation of an electromagnetic lock is based on powerful magnet and winding, with which the counter metal plate is held. This ensures low cost and high reliability. Such systems are not afraid of moisture, which allows them to be used as locking mechanisms on the gate or the front door to the entrance, office building. Of the shortcomings of electro magnetic locks it is worth noting the need for a constant supply of electricity to keep the door in the closed position. Another disadvantage of these systems is the residual magnetization, which creates additional resistance to opening. Ideally, this parameter should not exceed 1-2 kg, which will allow the child to use the door.

When the power supply is cut off, the lock will automatically open, so it is important to provide an additional power source.

Electromechanical

A feature of this type is its design as close as possible to the "classic" version. Inside the body of the locking mechanism there is a key cylinder and a system of levers that can be actuated by a small electromagnet. This design allows you to open the door from the outside with a key, and from the inside with an intercom or a button located on the body.

electromotive

Constipation of this design remains the closest relative of electromechanical. The main difference is the use of an electric motor as a drive source, and not a magnet. To increase the durability of such a lock, there is a soft opening system, which reduces the load on the drive. The higher complexity of these locking mechanisms determines their high cost, which must be taken into account when choosing.

What to look for when choosing

There are hundreds of models of electric locks for entrance doors and gates on the market today, so it is important to know following points when choosing a specific option:

Place of installation. Mortise locks are usually placed on entrance doors, but a more affordable, but no less reliable, laid on electromagnetic street lock is suitable for a gate.

The magnitude of the load "on separation"(the moment is relevant for electromagnetic locks). For the lungs interior doors this parameter can be in the range of 150 kg, for standard entrance doors weighing up to 100 kg, the “tearing off” load should already be 300-500 kg, and for heavy structures it should already be more than a ton.

Control method. By default, the magnetic lock connection scheme provides for the possibility of its remote control. This can be done by integrating common system"smart home" or provide for unlocking by pressing a button on the remote lock.

Can be used without power supply. In the event of a power failure, individual variants can automatically unlock or, conversely, block the electric lock. To prevent this, it is necessary to provide for the possibility, depending on the specific case, of having backup power, opening the lock with a key, and so on.

Manufacturer. Today, the market offers a wide range of manufacturers of electromagnetic locks, among which the most popular are the following:

• ISEO (an Italian company whose locks can be opened with an ordinary key);
• CISA (a feature of the company's products in special coded keys supplied with a sealed lock);
• Mingyang (a Taiwanese brand offers electric locks for doors that open inward and outward, which are guaranteed to work at temperatures not lower than 10 degrees below zero, which must be taken into account when choosing).

Video

Mounting

If you have the proper skills, installing a magnetic lock on the gate or an electric locking mechanism on the front door does not take more than 2-3 hours. Installation usually takes place with the help of a T-shaped corner connecting the frame and the profile. To do this, pre-marked places for drilling mounting holes. This must be done very accurately and accurately to prevent subsequent improvements. After drilling the mounting holes, it is necessary to arrange channels in the frame for electric cable, which from the door leaf will pass into the frame profile. This cable is required for power supply and connection to the intercom for remote control of the locking mechanism.

If you plan to connect an intercom electric lock to the control system, you must additionally purchase a connecting cable. As the latter, you can use twisted pair or a special combined conductor that can simultaneously transmit video, sound and electricity. A feature of such cables is the presence of several flexible cores at once different color, one of which has a copper braid.

Intercom connection

To connect a video intercom to the gate, you need to focus on the colors and numbers of the terminal contacts, which are almost always available on the call panel and the intercom itself. It is also important to provide a separate power supply for the lock. Here, for all its simplicity, you should not use a video intercom as a source because of the risk of various malfunctions. When choosing a power supply, it is necessary to take into account the parameters of the locking mechanism itself.

A definite recommendation will be before installation pre-assembly power supply and intercom connection to the lock "on the table". This will allow you to immediately check the performance of the system, and if there are problems, quickly make adjustments by understanding the connection process.

Advantages and disadvantages

The increasing distribution of electric locks on entrance doors and gates is due to the following advantages:

• maximum comfort for residents of houses, due to the ability to open doors remotely;
• high reliability of systems due to the absence of rubbing elements, relative simplicity of design;
• increased difficulty in forging magnetic cards and keys;
• resistance to low temperatures, moisture and other external conditions;
• easy integration of locks into an access control system of any complexity.

At the same time, electric locks are unlikely to completely replace traditional mechanical designs, which is associated with the following disadvantages.

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Electric locks for entrance doors perform the functions of locking devices controlled by applying or removing voltage to their actuating elements.

Quite often, these products are used in combination with video surveillance equipment, controllers, code devices and other security equipment. Together they form a system for monitoring and managing access to a room or territory.

Electric locks may differ in the principle of operation, appearance and method of installation, but they all have one purpose - to prevent the entry of unauthorized persons.

General information about locks powered by electricity.

Powered locks electric shock, work according to one of two schemes:

• the first option - the possibility of opening the door appears when the power is turned off;
• the second option - the door opens when voltage is applied.

In both cases, in order to avoid accidents associated with electric shock, a voltage not higher than 12 Volts or 24 Volts is used. This is quite enough for the device to perform its functions.

According to the principle of operation, the electric lock on the front door can be of the following type:

An electromagnetic or active magnetic lock on the front door works due to the mutual attraction of two structural elements under the influence magnetic field. One of the parts is fixed on the door leaf, the second - on door frame. Being attracted, they create an inextricable connection, which is broken only when the power is turned off.

Electromechanical locks provide in their design, in addition to electrical circuits, the presence of mechanics, which ensures the operation of the product, both from the action of current and manually, using a key.

Each of the listed options is endowed with advantages and disadvantages, so they all need to be considered in more detail. As a separate type, there is a combination lock on the front door, which can have a purely mechanical design.

ELECTROMAGNETIC DOOR LOCK

This type of locking device has simple design and pretty easy to install. Due to this feature, they are widely used and are often used in smart home systems.

The electromagnetic lock on the front door consists of three main parts:

• an electromagnet, which is a core with a winding, installed on the luke of the front door;
• reciprocal panel (anchor) - a metal plate fixed on the door itself;
• a controller used to control the lock, placed in a convenient place for the user.

Such locks are of two types: tear-off and shear. The difference between them is not difficult to guess from the name. The principle of operation is based on the action of a magnetic field created by an electromagnet when power is supplied to it in the form of a constant voltage of 12 or 24 volts.

The magnet attracts the anchor to itself, providing a powerful grip, with a holding force reaching several hundred kilograms. At break electrical circuit, the lock opens. The power supply to the device is controlled by a controller and can be done by pressing a button, using a magnetic key, a card, or remotely. This significantly expands the scope of such structures.

Advantages and disadvantages of electromagnetic locks.

The main advantage of the product in question is the possibility of using it at a variety of objects, from the entrance doors of residential premises and offices, to secure checkpoints. industrial enterprises. In addition, each locking device, acting by electromagnetic field, has the following advantages:

• simplicity of design and installation, allowing installation by one's own hands;
• wide range allowable temperatures environment(-20°С-+50°С) and resistance to precipitation, allowing operation inside and outside buildings;
• long working life due to the absence of moving and small fragile parts;
• burglary resistance.

In addition, an active magnetic lock on the door has an additional advantage - affordability, which is important in the age of total savings.

But, along with positive qualities, electromagnetic products have one serious negative point - in the event of a general power outage, the front door remains open. This drawback excludes the use of electromagnetic locking devices at facilities with special security requirements.

On the conventional doors this problem is solved by connecting an additional independent power source, as is done in systems " smart home". Uninterruptible power supplies or various batteries can be used.

ELECTROMECHANICAL LOCK FOR FRONT DOOR

This type of locks does not have a disadvantage, like its counterpart with an electromagnetic principle of operation. In the event of a power outage, the user can always use the mechanical part of the lock with a key. According to the installation method, the electromechanical lock on the front door can be mortise or overhead.

In appearance, these locking devices are similar to conventional locks, but fundamentally differ in their design.

The executive body of the locks is a bolt, which is driven either by a conventional mechanical key or by an electromechanical device through the controller. This allows you to open and close the door remotely. There are several types of electromechanical products according to the method of locking the door:

• electro blocking;
• solenoid;
• motor.

The operation of the lock with electric blocking is due to complex system levers, springs and a latch actuated by a solenoid. The latch position is normally closed. The mechanism works as follows:

• when the door is closed, the latch enters the groove of the reciprocal plate and is held in it by a spring, which is blocked by a latch;
• when voltage is applied, the solenoid attracts the armature to itself, lowers the latch and retracts the latch inward, allowing the door to be opened;
• after opening and turning off the power, the latch slides out, taking up the working position.

Typically, such locks with electric interlocks are supplemented by a key secrecy mechanism, which is opened both by a key and by applying voltage.

Electromechanical lock on the front door of the solenoid type have a simpler design. Their bolt is a continuation of the solenoid core and is drawn into the lock body under the action of an electromotive force that occurs when power is applied. They also open with a mechanical key.

Motor locks provide in their design for the presence of a small electric motor that drives the bolt.

Advantages and disadvantages of electromechanical locks.

This type of products for entrance systems has a number of disadvantages, but most of them relate to the comfort of use than to the performance of the structure:

• when the door leaf is opened, the bolt sticks out of it, posing a threat in terms of hooking and tearing clothes or other property;
• to install the lock on the door and its settings, special skills are required, or the help of a specialist;
• high cost compared to mechanical counterparts;
• slow operation of the crossbar for motor models.

These moments are able to "cast a shadow" on electromechanical locks, but their advantages can more than cover any disadvantages. The main one is the ability to use the locking device even in the absence of electricity.

• possibility of remote control of input-output;
• the mechanical part of the products has additional secrecy of the cylinders;
• familiar appearance that does not attract undue attention;
• the presence of a lock against unauthorized opening from the outside.

Many electromechanical locks have two or three bolts, which increases the resistance to burglary and the security of the room on the door of which they are installed.

MAGNETIC LOCK FOR INTERIOR DOOR

This type of locking devices does not have the qualities that are inherent in electromechanical analogues for entrance doors. But they are also reliable and functional. There are two types of magnetic lock on the interior door:

• active action;
• passive.

Models passive type work at the expense of a mobile magnetic crossbar. It is drawn into the body under the action door handle. The counterpart, fixed on the door frame, has a metal base.

When the door is closed, the bolt is attracted to the metal and enters the recess on the box. To open the door, you need to turn the handle and return the actuator to its original position.

Active devices operate on the principle of electromagnetic locks and must be constantly energized to work. Opening is done by pressing a button on the door or remotely. This construction may seem inconvenient, but it is quite effective:

• from point of view fire safety– in case of a power outage, all doors become open;
• in terms of protection - leaving the premises, the doors are blocked through the controller and become an insurmountable obstacle for intruders;
• along the line of comfort - the locks do not have protruding parts that can be hooked on.

The main advantage of magnetic locks for interior doors is their reliability and durability.

In conclusion, it is worth noting that electric locks for entrance doors are gaining more and more popularity due to their practicality. Every person wants to secure their estate as much as possible, and this category locking devices have proven their reliability and functionality.

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The electronic entrance lock is the most necessary and useful thing in private houses. Currently, it is popular because it has no wells and is therefore hidden from prying eyes. It is located around the entire perimeter of the door and for breaking it is necessary to determine its location, which is not so simple.

It is realistic to open such a lock using plastic card, using electronic key fobs or by entering a special personal code. There are also such electronic modes, which can only be opened with the owner's fingerprints.

Electronic lock on the front door for the apartment

The main advantage of electronic locks is their ease of use and efficiency. The electronic code lock on the door can be of two types:

• electromechanical;
• electric with magnetic carrier.

These two types are used at checkpoints in offices or at enterprises, in warehouses. They are used because of a number of properties and various kinds of operations, as well as the built-in function of accounting for the working day. Outwardly, they look like a normal door lock, but can be both mortise and overhead.

Advantages and features of door devices

Read also about how the insulation of entrance metal doors occurs.

It is almost impossible to open such locks, and if it breaks, it cannot be opened at all without a certain set of tools. Hence the plus and minus of such a device at the same time: it is impossible to open it - that is, the thief will not penetrate, but you yourself will not leave without calling special services to break the entire door, and not just the lock.

The peculiarities of using electronic locks also suggest this option: if it is broken and stands on your doors, you cannot get into the apartment on your own, you need to contact the security or repair service.

Unlike other types of mechanical locks, electronic locks have a number of advantages, they are famous for their secrecy, they are almost impossible to open. It is made of special steel, their locking device is very durable.

Entrance insulation technology wooden doors described.

Also, the electronic lock has a long service life, and unlike other types, it is considered more reliable. But, despite a number of positive properties, there are also disadvantages:

• instability of the microcircuits that are inside;
• a failure in the microcircuit can be disturbed due to a difference in atmospheric pressure;
• a secret password that the owner can forget or unauthorized persons can spy on the dialed combination.

However, this problem can be solved: by contacting specialists, the lock is reprogrammed. Such locking devices are very popular on entrance doors, on doors where there should be access to the lock only from one side, in offices, warehouses, at checkpoints, in houses, garages, on gates, fences.

Types of locks and types of lock keys: automatic, coded, with a card

There are several types of electronic devices on the market:

• Electronic- opens with the application of a card. Such locks are used to enter a hotel, cottage or office building. With such locks, the risk of unauthorized people entering the building is significantly reduced.
• mechanical electronic- opens in three types: with keys and with an electric drive that can open the lock even at a distance. And it can also be opened using a secret code that prohibits entry into the room if the code is entered incorrectly. Install this lock on the gates, entrances. The operation of such a device occurs by connecting to the service inside the building.

• Combined
• Combined- a device with an electronic key, the most popular type of locks today. It is possible to open with a pair of keys or use a card. Lock of this type is considered the most reliable, since if any of the mechanisms cannot be opened, then it will be impossible to open the second, third, etc., since they are interconnected by a chain.
• Biometric– can be opened by applying hands, fingers: the device reads fingerprints. It works on a touch scanning program. Used for the most serious and reliable protection premises, they cannot be opened by third parties. The advantage is that the owner does not need to remember the password and does not need to carry a card and keys, this function is performed by his hands.
• Invisible- a modern type of lock that is not visible to outsiders and can be found with the help of special devices. When opening and closing, the bolt rotates with the help of mechanisms consisting of a gearbox and an electric motor. These mechanisms contribute to the reliable locking of the door. You can install such a lock yourself, having carefully studied the principle of operation. The invisible electronic lock is based on a powerful deadbolt, but where and how it is built into the door is not visible if you do not know about it in advance. This lock has no holes or interface, it opens by remote control from 1 to 10 m distance.

Do-it-yourself electronic lock can be installed realistically, especially when it comes to an overhead device in which you do not need to cut anything in the door, to run a cable. It is enough just to attach the lock to the door, make sure that there is an opening for the deadbolt on the casing and set the code.

The charm of electronic locks has long been appreciated by offices, warehouses, enterprises, and even ordinary residents: a magnetic locking device on entrance doors is also an example of an electronic lock. At will, in such a lock, you can change the code. Such a device allows you to forget about the keys, which significantly saves time searching for them, jamming, fear of picking up master keys by thieves and turning the key in the well.

Video about a digital lock - its repair and installation

The video shows an overview of the electronic lock.

The overhead electronic lock can be easily installed by yourself or you can change the code on the door yourself.

The price of an electronic door lock can be different, depending on the functions that the device performs - whether it connects to the phone, what kind of display or keyboard it has, the range of the signal from the key fob, the complexity of the device, the number of bolts, whether it is connected to security system, whether there is a sound warning about low battery and a clock, how it is blocked and how realistic it is to break or disable it. To feel safe - do not skimp on the lock.

Operating principle

Such devices work on the basis of a crossbar valve. The electronic lock with a card opens when the sensor contacts the user's card. These cards are issued by businesses or to the purchaser of the electronic lock. It is impossible to fake or use a card from another door.

You may also be interested in information on how to choose.

The spring, which is pressed by pressing the handle, presses on the bolt and the door opens, and when closing, the spring is weakened, the bolt jumps out and is fixed between the doorway. The bolt can be controlled using electromagnets or solenoids.

Such electronic locks are solenoid in nature, they act on the signal several times faster and install them on the door with several stages when opening and closing. When opening these locks, keys are not required, since the arranged electronic reader will allow you to open the doors using a card that is applied to the main part of the lock.

Read how to open the front door lock without a key.

The lock looks very nice - it can be a pen with numeric keys, a pen or a block with a sensor to which a card or a finger is applied. The lock is not visible at all - it reacts to a keychain or an application in the phone, and the device panel can be touch-sensitive with backlight for the dark time of the day.

You may be interested in information on how to install .

For security purposes, electronic locks are simply irreplaceable. An electronic lock can be a complex combination and is installed in any security system. If the password is entered incorrectly more than 3 times, the alarm is activated and the signal is sent to the security point.

How to open

With such locks, the speed of opening doors is many times faster than with conventional key locks. The service life of such locks is unlimited, since they are the least exposed to rust and breakage, which leads to the shifting of mechanisms. The electronic lock is charged using the mains, that is, the battery is automatically charged. This property makes it possible to use such a device even in places without power supply.

Is it safe to use such a lock?

Most of the electric locks work under the influence of 220V, but the current used is different and this should be taken into account when choosing a power supply. For complete confidence in security, in addition to installing electronic locks on the door, experts recommend installing an additional lock with a different internal mechanism and principle of operation, this way you will definitely protect your property.

The castle has battery inside, and therefore, when the light is turned off, the lock continues to work, if the battery runs low, a signal sounds or is sent via the GSM module to the mobile phone via SMS.

When choosing an electric lock, do not forget to contact the service from time to time. Please note that right choice locking device is the safety of your home and property.

Installing electronic locks on the door provides time savings while a would-be thief tries to figure out where the lock is. Its location is extremely difficult to calculate. The advantages of such devices save time for the owner and prevent break-ins and thefts, which is especially pleasing.

The use of programmable electronic components in the most simple appliances and mechanisms has become an objective reality. Electronic alarm on a car and in an apartment is considered a classic of security devices, so in the near future it will not be an electronic lock on the front door that will surprise, but rather an ordinary mechanical lever or English castle rarity. In fact, the development of electronic door locks, as well as car alarms, has seriously pushed the increased number of crimes against the personal property of citizens, so the use of electronics is more of a forced measure than just a tribute to fashion.

What gives the installation of an electronic version of the door lock

Enthusiasts for the development of "smart" household appliances and devices with elements electronic control standard mechanical locks are mercilessly criticized for their primitiveness - even a novice burglar can open such a lock and freely enter the house. There is some truth in this statement. Compared to a poor mechanical drive, electronic locks for front doors look very convincing:

• It is fundamentally impossible to open the door without entering the control sequence of code digits or transmitting the signal remotely;
• Opening the bolt part of the lock is much more difficult, even when the power is turned off, the lock continues to function on batteries;
• The device can be programmed for certain sequences of actions, give or restrict access to the front door to specific persons, block the lock at the first sign of illegal actions.

Note! For example, you can set permission to open a lock only on certain time days. In the absence of the owners at an unauthorized time, you can open the lock only by breaking the front door.

In fact, an electronic lock allows you to raise the control of the access process to a new level of quality and manage access for any person entering the premises. Such systems successfully replace the system of passes in offices and enterprises with a special mode of operation. If the key is lost, the lock can be reprogrammed or blocked.

Disadvantages of electronic lock systems for the front door

Unfortunately, electronic locks also have disadvantages.

Firstly, any lock on microcircuits and chips requires preparation in order to properly configure and program it. Installing a lock on the front door with your own hands is quite simple, but setting up or repairing is more difficult. If you turn to a specialist for help, automatically a stranger has to trust some of the secret information about the device of the lock on the front door.

Secondly, electronics are not always more reliable than a mechanical lock. If the electronic board breaks or burns out, you can sit in front of the front door for a long time until the specialists arrive for repairs.

Thirdly, the main part of the electronic or electromechanical lock on the front door is a mechanical drive that controls the movement or fixation of the steel lock. If for electronics the number of opening-closing cycles can be tens of thousands, then for the mechanical part this value rarely exceeds 5-7 thousand openings.

In addition, some types of electronic locks for entrance doors are still not as reliable as it might seem at first glance, which needs to be discussed separately.

Design and construction of electronic locks

A modern lock on electronic components, designed for installation on the front door, consists of two blocks - electronic and electromechanical. Most often locking devices classified precisely according to the principle of operation and organization of access of the first block:

1. By entering a set of characters, or an access code on the keyboard, or by turning the numeric verniers. Such a castle may look like a normal door structure with a handle, but equipped with an additional keyboard panel;
2. Entering the code using a magnetic or remote card with a chip. In this case, the card plays the role of a regular key, so you can open the lock with a stolen or forged chip card;
3. With the help of a radio key, mobile phone, gadget with special program controlling the lock on the front door via radio;
4. Using a scanner of a numerical code, a fingerprint or other physical parameters of the owner of the premises.

Some access methods can be duplicated or used in parallel, for example, entering a code can be duplicated by a fingerprint scanner, or opening the lock on the front door with a key fob will require confirmation from a mobile phone. All this creates additional obstacles for hacking, but at the same time complicates the system and makes it less reliable.

Electronic lock drive device

The operating mechanism of the electronic lock on the front door is in many ways reminiscent of the design of a conventional mechanical lock. At the command of the electronics, the electromechanical group of the lock activates one of the drive options.

Most often, the opening part of the lock is made according to the solenoid-bolt scheme. A powerful coil, inside which there is a movable bolt, pushes it out with an electromagnetic field and draws it in at the command of the electronic board, and accordingly opens or blocks the front door. This design can be installed on almost any door without any problems. There is one drawback in the design - when the coil is triggered, a powerful burst of electromagnetic field is formed, by which, using the simplest field sensors, you can easily determine its location, open the door leaf and unlock the door.

The second most common is the screw drive gear with a conventional electric motor. This is the most reliable and stable working scheme that you can put on the front door with your own hands. In this case, the motor torque is converted into a linear motion of the bolt. Works very discreetly and almost silently. It is almost impossible to block the movement of the locking element. The disadvantages of the device include the need for periodic maintenance of the gearbox, otherwise the mechanism may jam.

On electronic locks with a manual drive, most often used for the entrance doors of apartments and houses, a short-stroke electromagnet is used. By pulling on the work bar or latch, the magnetic device locks or unlocks the spring-loaded pawl or latch. The rotation of the handle, the key, the movement of the vertical spacers can also be blocked. The electric lock on the front door turns out to be very economical, since practically no electricity is consumed in standby mode.

Such devices can work even when the power is turned off. The electronic part of the lock on the front door will work at the expense of batteries for another 20-30 hours. In some designs of locks, the electronic board is equipped with a GSM module, which allows sending a message to the phone of the owner of the premises in the event of a power outage.

For entrance doors through which a large number of people constantly move, they use the simplest system of a powerful electromagnet that attracts and holds the front door leaf in a stationary state due to its own magnetic field. Despite the obvious inefficiency, the device has the highest resistance to hacking and a huge resource of 50-60 thousand operations per year. Opening such an entrance door without entering a code is possible only by turning off the power supply, or by applying a force of several hundred kilograms. The simplest device makes the lock very reliable, but it requires special automation that protects the electromagnet circuit from overloads and short circuits.

Is it possible to open the electronic lock on the front door

It is impossible to open only a lock of a unique design, the device of which the attackers do not know anything about. Most of the locks, costing 5-7 thousand rubles, available for sale, you can buy, understand the features of their functioning and choose a method of opening.

By the appearance of the keypad or card reader, it is quite easy for an attacker to determine the type and model of the lock, and further opening is a matter of technology. It is much more difficult when the structure is hidden inside the front door, and the control signal for the electronic lock board is transmitted secretly. For example, in the owner's pocket there is a chip card with a transmitter, or the lock sensor is triggered by the level of the magnetic field of the chip mounted in a watch or any other item from personal belongings that does not arouse suspicion.

The worst option is defiantly pressing keys on the panel or beeping with a key fob in front of strangers. In both cases, the code is easily read by a hidden camera or special receiver.

Advice! If you like remote control electronic lock on the front door, use the device without taking it out of your pocket or bag, bringing it to minimum distance to the sensor. In this case, the chances for an attacker to record a signal are minimized.

Conclusion

Undoubtedly, the use of electronic locks increases security by several orders of magnitude in comparison with even the most complex mechanical systems. But electronic locks fail much more often, repairing them is much more difficult and expensive. In addition, the more complex the electronic block of the lock, the easier it is to open it without leaving marks, which is the biggest problem for the owner.